[tor-commits] [translation/torbutton-torbuttondtd] Update translations for torbutton-torbuttondtd

Fri Mar 20 10:47:18 UTC 2015

commit 31531a4f7a6676dfc069a2d8bb1dd33f2275c93b
Author: Translation commit bot <translation at torproject.org>
Date:   Fri Mar 20 10:47:13 2015 +0000

    Update translations for torbutton-torbuttondtd
---
 ach/torbutton.dtd         |   27 +++++++++++++++++++++++++++
 ady/torbutton.dtd         |   27 +++++++++++++++++++++++++++
 af/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 ak/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 am/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 ar/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 arn/torbutton.dtd         |   27 +++++++++++++++++++++++++++
 ast/torbutton.dtd         |   27 +++++++++++++++++++++++++++
 az/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 be/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 bg/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 bn/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 bn_IN/torbutton.dtd       |   27 +++++++++++++++++++++++++++
 bo/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 br/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 bs/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 ca/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 cs/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 csb/torbutton.dtd         |   27 +++++++++++++++++++++++++++
 cv/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 cy/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 cy_GB/torbutton.dtd       |   27 +++++++++++++++++++++++++++
 da/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 de/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 dz/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 el/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 en/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 en_GB/torbutton.dtd       |   27 +++++++++++++++++++++++++++
 eo/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 es/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 es_AR/torbutton.dtd       |   27 +++++++++++++++++++++++++++
 es_CL/torbutton.dtd       |   27 +++++++++++++++++++++++++++
 es_CO/torbutton.dtd       |   27 +++++++++++++++++++++++++++
 es_MX/torbutton.dtd       |   27 +++++++++++++++++++++++++++
 et/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 eu/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 fa/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 fi/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 fil/torbutton.dtd         |   27 +++++++++++++++++++++++++++
 fo/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 fr/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 fr_CA/torbutton.dtd       |   27 +++++++++++++++++++++++++++
 fur/torbutton.dtd         |   27 +++++++++++++++++++++++++++
 fy/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 ga/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 gl/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 gu/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 gu_IN/torbutton.dtd       |   27 +++++++++++++++++++++++++++
 gun/torbutton.dtd         |   27 +++++++++++++++++++++++++++
 ha/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 he/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 hi/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 hr/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 hr_HR/torbutton.dtd       |   27 +++++++++++++++++++++++++++
 ht/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 hu/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 hy/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 hy_AM/torbutton.dtd       |   27 +++++++++++++++++++++++++++
 ia/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 id/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 is/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 it/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 ja/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 jv/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 ka/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 kk/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 km/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 kn/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 ko/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 ko_KR/torbutton.dtd       |   27 +++++++++++++++++++++++++++
 ku/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 ku_IQ/torbutton.dtd       |   27 +++++++++++++++++++++++++++
 kw/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 ky/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 la/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 lb/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 lg/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 ln/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 lo/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 lt/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 lv/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 mg/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 mi/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 mk/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 ml/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 mn/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 mr/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 ms_MY/torbutton.dtd       |   27 +++++++++++++++++++++++++++
 mt/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 my/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 nah/torbutton.dtd         |   27 +++++++++++++++++++++++++++
 nap/torbutton.dtd         |   27 +++++++++++++++++++++++++++
 nb/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 nds/torbutton.dtd         |   27 +++++++++++++++++++++++++++
 ne/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 nl/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 nl_BE/torbutton.dtd       |   27 +++++++++++++++++++++++++++
 nn/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 nso/torbutton.dtd         |   27 +++++++++++++++++++++++++++
 oc/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 or/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 pa/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 pap/torbutton.dtd         |   27 +++++++++++++++++++++++++++
 pl/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 pms/torbutton.dtd         |   27 +++++++++++++++++++++++++++
 ps/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 pt/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 pt_BR/torbutton.dtd       |   27 +++++++++++++++++++++++++++
 ro/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 ru/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 ru at petr1708/torbutton.dtd |   27 +++++++++++++++++++++++++++
 scn/torbutton.dtd         |   27 +++++++++++++++++++++++++++
 sco/torbutton.dtd         |   27 +++++++++++++++++++++++++++
 si/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 si_LK/torbutton.dtd       |   27 +++++++++++++++++++++++++++
 sk/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 sk_SK/torbutton.dtd       |   27 +++++++++++++++++++++++++++
 sl/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 sl_SI/torbutton.dtd       |   27 +++++++++++++++++++++++++++
 sn/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 so/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 son/torbutton.dtd         |   27 +++++++++++++++++++++++++++
 sq/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 sr/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 sr at latin/torbutton.dtd    |   27 +++++++++++++++++++++++++++
 st/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 su/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 sv/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 sw/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 szl/torbutton.dtd         |   27 +++++++++++++++++++++++++++
 ta/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 te/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 te_IN/torbutton.dtd       |   27 +++++++++++++++++++++++++++
 tg/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 th/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 ti/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 tk/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 tl_PH/torbutton.dtd       |   27 +++++++++++++++++++++++++++
 tr/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 ug at Arab/torbutton.dtd     |   27 +++++++++++++++++++++++++++
 uk/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 ur/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 ur_PK/torbutton.dtd       |   27 +++++++++++++++++++++++++++
 uz/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 ve/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 vi/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 wa/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 wo/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 yo/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 zh_CN/torbutton.dtd       |   27 +++++++++++++++++++++++++++
 zh_HK/torbutton.dtd       |   27 +++++++++++++++++++++++++++
 zh_TW/torbutton.dtd       |   27 +++++++++++++++++++++++++++
 zu/torbutton.dtd          |   27 +++++++++++++++++++++++++++
 153 files changed, 4131 insertions(+)

diff --git a/ach/torbutton.dtd b/ach/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/ach/torbutton.dtd
+++ b/ach/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/ady/torbutton.dtd b/ady/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/ady/torbutton.dtd
+++ b/ady/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/af/torbutton.dtd b/af/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/af/torbutton.dtd
+++ b/af/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/ak/torbutton.dtd b/ak/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/ak/torbutton.dtd
+++ b/ak/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/am/torbutton.dtd b/am/torbutton.dtd
index 81bdd67..28c8810 100644
--- a/am/torbutton.dtd
+++ b/am/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "áŠ¥áˆáˆµá‹ŽáŠ• áŠ¨áˆŒáˆŽá‰½ á‹¨Tor áŠ áˆ³áˆ½ á‰°áŒ á‰ƒáˆšá‹Žá‰½ á‹¨áˆšáˆˆá‹© á‹áˆá‹áˆ®á‰½áŠ• á‹á‰€á‹áˆ©">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/ar/torbutton.dtd b/ar/torbutton.dtd
index dcea8c7..5949f43 100644
--- a/ar/torbutton.dtd
+++ b/ar/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "ØªØºÙŠÙŠØ± Ø§Ù„ØªÙØ§ØµÙŠÙ„ Ø§Ù„ØªÙŠ ØªÙ…ÙŠØ²Ùƒ Ø¹Ù† Ø§Ù„Ù…Ø³ØªØ®Ø¯Ù…ÙŠÙ† Ø§Ù„Ø¢Ø®Ø±ÙŠÙ† Ù„Ù…ØªØµÙØ ØªÙˆØ±">
 <!ENTITY torbutton.prefs.sec_caption "Ù…Ø³ØªÙˆÙ‰ Ø§Ù„Ø£Ù…Ø§Ù†">
 <!ENTITY torbutton.prefs.sec_low "Ù…Ù†Ø®ÙØ¶ (Ø§ÙØªØ±Ø§Ø¶ÙŠ)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Ø´Ø¨Ù‡ Ù…Ù†Ø®ÙØ¶">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Ø´Ø¨Ù‡ Ø¹Ø§Ù„Ù">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "Ø¹Ø§Ù„Ù">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Ù‚ÙŠÙ… Ù…Ø®ØµØµØ©">
 <!ENTITY torbutton.circuit_display.title "Ø¯Ø§Ø¦Ø±Ø© ØªÙˆØ± Ù„Ù‡Ø°Ø§ Ø§Ù„Ù…ÙˆÙ‚Ø¹">
+
diff --git a/arn/torbutton.dtd b/arn/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/arn/torbutton.dtd
+++ b/arn/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/ast/torbutton.dtd b/ast/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/ast/torbutton.dtd
+++ b/ast/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/az/torbutton.dtd b/az/torbutton.dtd
index c0d3f71..f5889bd 100644
--- a/az/torbutton.dtd
+++ b/az/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "TÉ™hlÃ¼kÉ™sizlik sÉ™viyyÉ™si">
 <!ENTITY torbutton.prefs.sec_low "ZÉ™if(cari)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Orta-AÅŸaÄŸÄ±">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Orta-yÃ¼ksÉ™k">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "YuksÉ™k">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Manual dÉ™yÉ™rlÉ™r">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/be/torbutton.dtd b/be/torbutton.dtd
index ba3b20f..26d255f 100644
--- a/be/torbutton.dtd
+++ b/be/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/bg/torbutton.dtd b/bg/torbutton.dtd
index 415b012..4dc63f6 100644
--- a/bg/torbutton.dtd
+++ b/bg/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "ÐÐ¸Ð²Ð¾ Ð½Ð° Ð·Ð°Ñ‰Ð¸Ñ‚Ð°">
 <!ENTITY torbutton.prefs.sec_low "ÐÐ¸ÑÐºÐ¾ (Ð¿Ð¾ Ð¿Ð¾Ð´Ñ€Ð°Ð·Ð±Ð¸Ñ€Ð°Ð½Ðµ)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Ð¡Ñ€ÐµÐ´Ð½Ð¾-Ð½Ð¸ÑÐºÐ¾">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Ð¡Ñ€ÐµÐ´Ð½Ð¾-Ð²Ð¸ÑÐ¾ÐºÐ¾">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "Ð’Ð¸ÑÐ¾ÐºÐ¾">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Ð¡Ñ‚Ð¾Ð¹Ð½Ð¾ÑÑ‚Ð¸ Ð¿Ð¾ Ð¸Ð·Ð±Ð¾Ñ€">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/bn/torbutton.dtd b/bn/torbutton.dtd
index b20256f..28c588f 100644
--- a/bn/torbutton.dtd
+++ b/bn/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/bn_IN/torbutton.dtd b/bn_IN/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/bn_IN/torbutton.dtd
+++ b/bn_IN/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/bo/torbutton.dtd b/bo/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/bo/torbutton.dtd
+++ b/bo/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/br/torbutton.dtd b/br/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/br/torbutton.dtd
+++ b/br/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/bs/torbutton.dtd b/bs/torbutton.dtd
index 391c954..d022a9d 100644
--- a/bs/torbutton.dtd
+++ b/bs/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/ca/torbutton.dtd b/ca/torbutton.dtd
index 335510a..10d1c26 100644
--- a/ca/torbutton.dtd
+++ b/ca/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Nivell de seguretat">
 <!ENTITY torbutton.prefs.sec_low "Baix (per defecte)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "MitjÃ -baix">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "MitjÃ -alt">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "Alt">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Valors personalitzats">
 <!ENTITY torbutton.circuit_display.title "Circuit de tor per a aquest lloc">
+
diff --git a/cs/torbutton.dtd b/cs/torbutton.dtd
index 915e28f..82d4686 100644
--- a/cs/torbutton.dtd
+++ b/cs/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "ÃšroveÅˆ zabezpeÄenÃ">
 <!ENTITY torbutton.prefs.sec_low "NÃzkÃ¡ (vÃ½chozÃ)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "StÅ™ednÄ› nÃzkÃ¡">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "StÅ™ednÄ› vysokÃ¡">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "VysokÃ¡">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "VlastnÃ hodnoty">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/csb/torbutton.dtd b/csb/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/csb/torbutton.dtd
+++ b/csb/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/cv/torbutton.dtd b/cv/torbutton.dtd
index 790f714..5c35f64 100644
--- a/cv/torbutton.dtd
+++ b/cv/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/cy/torbutton.dtd b/cy/torbutton.dtd
index bbdebc4..34d4838 100644
--- a/cy/torbutton.dtd
+++ b/cy/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/cy_GB/torbutton.dtd b/cy_GB/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/cy_GB/torbutton.dtd
+++ b/cy_GB/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/da/torbutton.dtd b/da/torbutton.dtd
index 70d7c1c..b9147d1 100644
--- a/da/torbutton.dtd
+++ b/da/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Tilpas detaljer som adskiller dig fra andre Tor Browser-brugere">
 <!ENTITY torbutton.prefs.sec_caption "Sikkerheds Niveau">
 <!ENTITY torbutton.prefs.sec_low "Lav (standard)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Mellemlav">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "MellemhÃ¸j">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "HÃ¸j">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Brugervalgte vÃ¦rdier:">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for dette website">
+
diff --git a/de/torbutton.dtd b/de/torbutton.dtd
index 612267c..9c1d352 100644
--- a/de/torbutton.dtd
+++ b/de/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Details Ã¤ndern, die Sie von anderen Tor-Browser-Benutzern unterscheiden">
 <!ENTITY torbutton.prefs.sec_caption "Sicherheitslevel">
 <!ENTITY torbutton.prefs.sec_low "gering (Standard)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "unteres Mittel">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "oberes Mittel">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "hoch">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Eigene Werte">
 <!ENTITY torbutton.circuit_display.title "Tor-Kanal fÃ¼r diese Seite">
+
diff --git a/dz/torbutton.dtd b/dz/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/dz/torbutton.dtd
+++ b/dz/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/el/torbutton.dtd b/el/torbutton.dtd
index 1b8bb9b..5324488 100644
--- a/el/torbutton.dtd
+++ b/el/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Î‘Î»Î»Î¬Î¾Ï„Îµ Ï„Î¹Ï‚ Î»ÎµÏ€Ï„Î¿Î¼ÎÏÎµÎ¹ÎµÏ‚ Ï€Î¿Ï… ÏƒÎ±Ï‚ Î´Î¹Î±ÎºÏÎ¯Î½ÎµÎ¹ Î±Ï€ÏŒ Î¬Î»Î»Î¿Ï…Ï‚ Ï‡ÏÎ®ÏƒÏ„ÎµÏ‚ Ï„Î¿Ï… Tor Browser ">
 <!ENTITY torbutton.prefs.sec_caption "Î•Ï€Î¯Ï€ÎµÎ´Î¿ Î±ÏƒÏ†Î¬Î»ÎµÎ¹Î±Ï‚">
 <!ENTITY torbutton.prefs.sec_low "Î§Î±Î¼Î·Î»ÏŒ (Ï€ÏÎ¿ÎµÏ€Î¹Î»ÎµÎ³Î¼ÎÎ½Î¿)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "ÎœÎµÏƒÎ±Î¯Î¿-Ï‡Î±Î¼Î·Î»ÏŒ">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "ÎœÎµÏƒÎ±Î¯Î¿-Ï…ÏˆÎ·Î»ÏŒ">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "Î¥ÏˆÎ·Î»ÏŒ">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Î•Î¾Î±Ï„Î¿Î¼Î¹ÎºÎµÏ…Î¼ÎÎ½ÎµÏ‚ ÎµÏ€Î¹Î»Î¿Î³ÎÏ‚">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/en/torbutton.dtd b/en/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/en/torbutton.dtd
+++ b/en/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/en_GB/torbutton.dtd b/en_GB/torbutton.dtd
index c6ce0ba..d5a2ae6 100644
--- a/en_GB/torbutton.dtd
+++ b/en_GB/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (Default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/eo/torbutton.dtd b/eo/torbutton.dtd
index cbea50b..b50eb9d 100644
--- a/eo/torbutton.dtd
+++ b/eo/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Sekureca nivelo">
 <!ENTITY torbutton.prefs.sec_low "Malalta (implicita)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Meze malalta">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Meze alta">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "Alta">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Propraj valoroj">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/es/torbutton.dtd b/es/torbutton.dtd
index c33695c..3006a83 100644
--- a/es/torbutton.dtd
+++ b/es/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Cambiar los detalles que le distinguen de otros usuarios de Navegador Tor">
 <!ENTITY torbutton.prefs.sec_caption "Nivel de Seguridad">
 <!ENTITY torbutton.prefs.sec_low "Bajo (por defecto)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medio-Bajo">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medio-Alto">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "Alto">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Valores Personalizados">
 <!ENTITY torbutton.circuit_display.title "Circuito Tor para este sitio">
+
diff --git a/es_AR/torbutton.dtd b/es_AR/torbutton.dtd
index b279618..9a4c87f 100644
--- a/es_AR/torbutton.dtd
+++ b/es_AR/torbutton.dtd
@@ -155,8 +155,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/es_CL/torbutton.dtd b/es_CL/torbutton.dtd
index 1323378..84c0092 100644
--- a/es_CL/torbutton.dtd
+++ b/es_CL/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/es_CO/torbutton.dtd b/es_CO/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/es_CO/torbutton.dtd
+++ b/es_CO/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/es_MX/torbutton.dtd b/es_MX/torbutton.dtd
index 0a16144..fca8e97 100644
--- a/es_MX/torbutton.dtd
+++ b/es_MX/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/et/torbutton.dtd b/et/torbutton.dtd
index a410d1a..5204955 100644
--- a/et/torbutton.dtd
+++ b/et/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/eu/torbutton.dtd b/eu/torbutton.dtd
index 22ce9c7..0511ec4 100644
--- a/eu/torbutton.dtd
+++ b/eu/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Zu beste Tor Browser erabiltzaileengandik nabarmentzen zaituzten xehetasunak aldatu">
 <!ENTITY torbutton.prefs.sec_caption "Segurtasun maila">
 <!ENTITY torbutton.prefs.sec_low "Baxua (lehentsia)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Ertaina-baxua">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Ertaina-altua">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "Altua">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Balio pertsonalizatuak">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/fa/torbutton.dtd b/fa/torbutton.dtd
index 3c2e698..1c8f5fc 100644
--- a/fa/torbutton.dtd
+++ b/fa/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "ØªØºÙŠÙŠØ±Ø¯Ø§Ø¯Ù† Ø¬Ø²Ø¦ÙŠØ§ØªÙ‰ ÙƒÙ‡ Ø´Ù…Ø§Ø±Ø§ Ø§Ø² ÙƒØ§Ø±Ø¨Ø±Ø§Ù† Ø¯ÙŠÚ¯Ø± ØªÙØ± ØªÙ…ÙŠØ²Ù…Ù‰â€ŒÙƒÙ†Ø¯">
 <!ENTITY torbutton.prefs.sec_caption "Ø³Ø·Ø Ø§Ù…Ù†ÛŒØª">
 <!ENTITY torbutton.prefs.sec_low "Ù¾Ø§ÛŒÛŒÙ† (Ø¨Ù‡ Ø·ÙˆØ± Ù¾ÛŒØ´ ÙØ±Ø¶)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Ù…ØªÙˆØ³Ø· â€‹â€‹- Ú©Ù…">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Ù…ØªÙˆØ³Ø· â€‹â€‹- Ø¨Ø§Ù„Ø§">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "Ø²ÛŒØ§Ø¯">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "ØªÙ†Ø¸ÛŒÙ… Ø³ÙØ§Ø±Ø´ÛŒ">
 <!ENTITY torbutton.circuit_display.title "Ù…Ø¯Ø§Ø± Tor Ø¨Ø±Ø§ÛŒ Ø§ÛŒÙ† Ø³Ø§ÛŒØª">
+
diff --git a/fi/torbutton.dtd b/fi/torbutton.dtd
index 3d1428d..5f06f7b 100644
--- a/fi/torbutton.dtd
+++ b/fi/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Muuta lisÃ¤tietoja, jotka erottavat sinut muista Tor-selainkÃ¤yttÃ¤jistÃ¤">
 <!ENTITY torbutton.prefs.sec_caption "Turvallisuustaso">
 <!ENTITY torbutton.prefs.sec_low "Alhainen (oletus)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Keskitaso-Alhainen">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Keskitaso-Korkea">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "Korkea">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Omat arvot">
 <!ENTITY torbutton.circuit_display.title "Tor-kiertotie tÃ¤lle sivustolle">
+
diff --git a/fil/torbutton.dtd b/fil/torbutton.dtd
index 7061f59..7a83708 100644
--- a/fil/torbutton.dtd
+++ b/fil/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Lebel ng Seguridad">
 <!ENTITY torbutton.prefs.sec_low "Mababa (rematado)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Gitnang-Mababa">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Gitnang-Mataas">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "Mataas">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom na Halaga">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/fo/torbutton.dtd b/fo/torbutton.dtd
index 3fc55ba..37eee09 100644
--- a/fo/torbutton.dtd
+++ b/fo/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Broyt upplÃ½singar, sum skilja teg frÃ¡ Ã¸Ã°rum, sum brÃºka Tor-kagan">
 <!ENTITY torbutton.prefs.sec_caption "Trygdarstig">
 <!ENTITY torbutton.prefs.sec_low "LÃ¡gt (vanliga)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "MiÃ°al-lÃ¡gt">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "MiÃ°al-hÃ¸gt">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "HÃ¸gt">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "TillagaÃ° virÃ°i">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/fr/torbutton.dtd b/fr/torbutton.dtd
index 63ee1c8..d3e9c6a 100644
--- a/fr/torbutton.dtd
+++ b/fr/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Modifier les dÃ©tails qui vous distingue des autres utilisateurs du Navigateur Tor">
 <!ENTITY torbutton.prefs.sec_caption "Niveau de sÃ©curitÃ©">
 <!ENTITY torbutton.prefs.sec_low "Faible (dÃ©faut)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Moyen-Bas">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Moyen-Haut">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "Haut">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Valeurs personnalisÃ©es">
 <!ENTITY torbutton.circuit_display.title "Circuit Tor pour ce site">
+
diff --git a/fr_CA/torbutton.dtd b/fr_CA/torbutton.dtd
index cefcfe9..822ae64 100644
--- a/fr_CA/torbutton.dtd
+++ b/fr_CA/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Modifier les dÃ©tails qui vous distingue d'autres utilisateurs du navigateur Tor">
 <!ENTITY torbutton.prefs.sec_caption "Niveau de sÃ©curitÃ©">
 <!ENTITY torbutton.prefs.sec_low "Bas (par dÃ©faut)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Moyen-bas">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Moyen-haut">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "Ã‰levÃ©">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Valeurs personnalisÃ©es">
 <!ENTITY torbutton.circuit_display.title "Circuit Tor pour ce site">
+
diff --git a/fur/torbutton.dtd b/fur/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/fur/torbutton.dtd
+++ b/fur/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/fy/torbutton.dtd b/fy/torbutton.dtd
index a082fc6..ca7c843 100644
--- a/fy/torbutton.dtd
+++ b/fy/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Befeiligingsnivo">
 <!ENTITY torbutton.prefs.sec_low "Leech (standert)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Midsmjittich-Leech">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Midsmjittich-Heech">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "Heech">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Oanpaste wearden">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/ga/torbutton.dtd b/ga/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/ga/torbutton.dtd
+++ b/ga/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/gl/torbutton.dtd b/gl/torbutton.dtd
index 270b7c4..3e152e0 100644
--- a/gl/torbutton.dtd
+++ b/gl/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/gu/torbutton.dtd b/gu/torbutton.dtd
index bde8b19..86d948b 100644
--- a/gu/torbutton.dtd
+++ b/gu/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/gu_IN/torbutton.dtd b/gu_IN/torbutton.dtd
index 4f74c35..63707cd 100644
--- a/gu_IN/torbutton.dtd
+++ b/gu_IN/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/gun/torbutton.dtd b/gun/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/gun/torbutton.dtd
+++ b/gun/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/ha/torbutton.dtd b/ha/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/ha/torbutton.dtd
+++ b/ha/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/he/torbutton.dtd b/he/torbutton.dtd
index d283c52..cbe21b3 100644
--- a/he/torbutton.dtd
+++ b/he/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "×¨×ž×ª ××‘×˜×—×”">
 <!ENTITY torbutton.prefs.sec_low "× ×ž×•×š (×‘×¨×™×¨×ª ×ž×—×“×œ)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "×‘×™× ×•× ×™ × ×ž×•×š">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "×‘×™× ×•× ×™-×’×‘×•×”">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "×’×‘×•×”">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "×¢×¨×›×™× ×ž×•×ª××ž×™× ××™×©×™×ª">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/hi/torbutton.dtd b/hi/torbutton.dtd
index 6d99e20..65b013d 100644
--- a/hi/torbutton.dtd
+++ b/hi/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/hr/torbutton.dtd b/hr/torbutton.dtd
index 4d267ba..17538f2 100644
--- a/hr/torbutton.dtd
+++ b/hr/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/hr_HR/torbutton.dtd b/hr_HR/torbutton.dtd
index 6a4cadd..9d43f70 100644
--- a/hr_HR/torbutton.dtd
+++ b/hr_HR/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Promjeni detalje koji te razlikuju od ostalih korisnika Tor-a">
 <!ENTITY torbutton.prefs.sec_caption "Razina Sigurnosti">
 <!ENTITY torbutton.prefs.sec_low "Niska (zadano)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Srednje niska">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Srednje visoka">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "Visoka">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "PrilagoÄ‘ene Vrijednosti">
 <!ENTITY torbutton.circuit_display.title "Tor Krug za ovu stranicu">
+
diff --git a/ht/torbutton.dtd b/ht/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/ht/torbutton.dtd
+++ b/ht/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/hu/torbutton.dtd b/hu/torbutton.dtd
index 00bbf08..59b0e13 100644
--- a/hu/torbutton.dtd
+++ b/hu/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "VÃ¡ltoztassa meg a rÃ©szleteket, amik megkÃ¼lÃ¶nbÃ¶ztetik a tÃ¶bbi Tor bÃ¶ngÃ©szÅ‘ felhasznÃ¡lÃ³tÃ³l">
 <!ENTITY torbutton.prefs.sec_caption "BiztonsÃ¡gi szint">
 <!ENTITY torbutton.prefs.sec_low "Alacsony (alapÃ©rtelmezett)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "KÃ¶zepesen alacsony">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "KÃ¶zepesen magas">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "Magas">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "EgyÃ©ni Ã©rtÃ©kek">
 <!ENTITY torbutton.circuit_display.title "Tor Ã¡ramkÃ¶r ehhez az oldalhoz">
+
diff --git a/hy/torbutton.dtd b/hy/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/hy/torbutton.dtd
+++ b/hy/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/hy_AM/torbutton.dtd b/hy_AM/torbutton.dtd
index 5d2eb3e..a31a629 100644
--- a/hy_AM/torbutton.dtd
+++ b/hy_AM/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/ia/torbutton.dtd b/ia/torbutton.dtd
index a9d33a3..b416cca 100644
--- a/ia/torbutton.dtd
+++ b/ia/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/id/torbutton.dtd b/id/torbutton.dtd
index 47f1aa1..43d20f3 100644
--- a/id/torbutton.dtd
+++ b/id/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Level Keamanan">
 <!ENTITY torbutton.prefs.sec_low "Rendah (baku)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Menengah-Rendah">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Menengah-Tinggi">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "Tinggi">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Nilai Kustom">
 <!ENTITY torbutton.circuit_display.title "Sirkuit Tor untuk website ini">
+
diff --git a/is/torbutton.dtd b/is/torbutton.dtd
index e67fec2..2bcb717 100644
--- a/is/torbutton.dtd
+++ b/is/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/it/torbutton.dtd b/it/torbutton.dtd
index bd9755f..f0d74e8 100644
--- a/it/torbutton.dtd
+++ b/it/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Cambia i dettagli che ti distinguono dagli altri utenti di Tor Browser">
 <!ENTITY torbutton.prefs.sec_caption "Livello di Sicurezza">
 <!ENTITY torbutton.prefs.sec_low "Basso (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "Questo permette la migliore esperienza di usablitÃ .">
+<!ENTITY torbutton.prefs.sec_low_desc "A questo livello di sicurezza, tutte le features del browser sono abilitate.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "Il meccanismo di rendering SVG OpenType Ã¨ disabilitato.">
 <!ENTITY torbutton.prefs.sec_med_low "Medio-Basso">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Alcune ottimizzazioni di performance JavaScript sono disabilitate.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Gli scripts su alcuni siti possono girare piÃ¹ lenti.">
+<!ENTITY torbutton.prefs.sec_jar_desc "I file JAR remoti sono bloccati.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "I file JAR sono molto rari nel web, ma possono essere fonte di XSS o altri attacchi.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Alcuni meccanismi di visualizzazione di equazioni matematiche sono disabilitati.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML Ã¨ disabilitato.">
 <!ENTITY torbutton.prefs.sec_med_high "Medio-Alto">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Alcuni rendering dei font sono disabilitati.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Alcuni tipi di immagini sono disabilitati.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "Le immagini SVG sono disabilitate.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript Ã¨ disabilitato di default su tutti i siti non-HTTPS.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "Alto">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript Ã¨ disabilitato di default su tutti i siti.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Molti formati audio e video sono disabilitati.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM Ã¨ l'unico codec che rimane abilitato.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Alcuni caratteri e icone possono non essere visualizzati correttamente.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Valori Customizzabili">
 <!ENTITY torbutton.circuit_display.title "Circuito Tor per questo sito">
+
diff --git a/ja/torbutton.dtd b/ja/torbutton.dtd
index 1dc7e6c..4bdafc2 100644
--- a/ja/torbutton.dtd
+++ b/ja/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "ã‚ãªãŸã¨ã»ã‹ã®Torãƒ–ãƒ©ã‚¦ã‚¶ã®ãƒ¦ãƒ¼ã‚¶ãƒ¼ã‚’åŒºåˆ¥ã™ã‚‹è©³ç´°ã‚’å¤‰æ›´">
 <!ENTITY torbutton.prefs.sec_caption "ã‚»ã‚ãƒ¥ãƒªãƒ†ã‚£ãƒ¬ãƒ™ãƒ«">
 <!ENTITY torbutton.prefs.sec_low "ä½Žã„(ãƒ‡ãƒ•ã‚©ãƒ«ãƒˆ)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "ä¸ã®ä½Ž">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "ä¸ã®ä¸Š">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "é«˜ã„">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "ã‚«ã‚¹ã‚¿ãƒ å€¤">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/jv/torbutton.dtd b/jv/torbutton.dtd
index f96ef73..5b916e6 100644
--- a/jv/torbutton.dtd
+++ b/jv/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/ka/torbutton.dtd b/ka/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/ka/torbutton.dtd
+++ b/ka/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/kk/torbutton.dtd b/kk/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/kk/torbutton.dtd
+++ b/kk/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/km/torbutton.dtd b/km/torbutton.dtd
index 61a0aff..517525a 100644
--- a/km/torbutton.dtd
+++ b/km/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "áž•áŸ’áž›áž¶ážŸáŸ‹áž”áŸ’ážŠáž¼ážšâ€‹áž–áŸážáŸŒáž˜áž¶áž“â€‹áž›áž˜áŸ’áž¢áž·ážâ€‹ážŠáŸ‚áž›â€‹â€‹áž”áž„áŸ’áž áž¶áž‰â€‹áž—áž¶áž–â€‹ážáž»ážŸâ€‹áž‚áŸ’áž“áž¶â€‹áž¢áŸ’áž“áž€â€‹áž–áž¸â€‹áž¢áŸ’áž“áž€â€‹áž”áŸ’ážšáž¾áž”áŸ’ážšáž¶ážŸáŸ‹â€‹ Tor Browser áž•áŸ’ážŸáŸáž„â€‹áž‘áŸ€áž">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/kn/torbutton.dtd b/kn/torbutton.dtd
index 265d0bd..7630580 100644
--- a/kn/torbutton.dtd
+++ b/kn/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "à²¸à³à²°à²•à³à²·à²¤à²¾ à²®à²Ÿà³à²Ÿ">
 <!ENTITY torbutton.prefs.sec_low "à²•à²¡à²¿à²®à³† (à²¡à²¿à³•à²«à²¾à²²à³à²Ÿà³)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "à²®à²§à³à²¯à²®-à²•à²¡à²¿à²®à³†">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "à²®à²§à³à²¯à²®-à²¹à³†à²šà³à²šà³">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "à²¹à³†à²šà³à²šà³">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "à²µà²¾à²¡à²¿à²•à³† à²®à³Œà²²à³à²¯à²—à²³à³">
 <!ENTITY torbutton.circuit_display.title "à²ˆ à²¸à³†à³–à²Ÿà³à²—à³† à²Ÿà²¾à²°à³ à²¸à²°à³à²•à³à²¯à³‚à²Ÿà³">
+
diff --git a/ko/torbutton.dtd b/ko/torbutton.dtd
index 9ef3362..8496505 100644
--- a/ko/torbutton.dtd
+++ b/ko/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "ë‹¤ë¥¸ Tor browser ì‚¬ìš©ìžë¡œë¶€í„° êµ¬ë³„ë˜ëŠ” ì„¸ë¶€ ì‚¬í• ë³€ê²½">
 <!ENTITY torbutton.prefs.sec_caption "ë³´ì•ˆ ë“±ê¸‰">
 <!ENTITY torbutton.prefs.sec_low "ë‚®ìŒ (ê¸°ë³¸)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "ì¤‘ê°„ ë‚®ìŒ">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "ì¤‘ê°„ ë†’ìŒ">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "ë†’ìŒ">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "ë§žì¶¤ ê°’">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/ko_KR/torbutton.dtd b/ko_KR/torbutton.dtd
index 2a0dd14..b52f5af 100644
--- a/ko_KR/torbutton.dtd
+++ b/ko_KR/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/ku/torbutton.dtd b/ku/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/ku/torbutton.dtd
+++ b/ku/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/ku_IQ/torbutton.dtd b/ku_IQ/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/ku_IQ/torbutton.dtd
+++ b/ku_IQ/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/kw/torbutton.dtd b/kw/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/kw/torbutton.dtd
+++ b/kw/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/ky/torbutton.dtd b/ky/torbutton.dtd
index 1b02755..4402169 100644
--- a/ky/torbutton.dtd
+++ b/ky/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/la/torbutton.dtd b/la/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/la/torbutton.dtd
+++ b/la/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/lb/torbutton.dtd b/lb/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/lb/torbutton.dtd
+++ b/lb/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/lg/torbutton.dtd b/lg/torbutton.dtd
index 5b89527..28219c9 100644
--- a/lg/torbutton.dtd
+++ b/lg/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/ln/torbutton.dtd b/ln/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/ln/torbutton.dtd
+++ b/ln/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/lo/torbutton.dtd b/lo/torbutton.dtd
index 592cd66..c758448 100644
--- a/lo/torbutton.dtd
+++ b/lo/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "àº¥àº°àº”àº±àºšàº„àº§àº²àº¡àº›àºàº”à»„àºž">
 <!ENTITY torbutton.prefs.sec_low "àº•à»à»ˆàº² (àº•àº²àº¡àº„à»ˆàº²à»€àº”àºµàº¡)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "àºàº²àº‡-àº•à»à»ˆàº²">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "àºàº²àº‡-àºªàº¹àº‡">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "àºªàº¹àº‡">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "àºàº³àº™àº»àº”àº„à»ˆàº²à»€àºàº‡">
 <!ENTITY torbutton.circuit_display.title "àº§àº»àº‡àºˆàºàº™ Tor àºªàº³àº¥àº±àºšà»€àº§àº±àºšà»„àºŠàº™àºµà»‰">
+
diff --git a/lt/torbutton.dtd b/lt/torbutton.dtd
index b43d560..3985a88 100644
--- a/lt/torbutton.dtd
+++ b/lt/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/lv/torbutton.dtd b/lv/torbutton.dtd
index 06b6e72..9bc2f97 100644
--- a/lv/torbutton.dtd
+++ b/lv/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "MainÄ«t informÄciju, kura dara JÅ«s atÅ¡Ä·irÄ«gus no citiem PÄrlÅ«ka Tor lietotÄjiem">
 <!ENTITY torbutton.prefs.sec_caption "DroÅ¡Ä«bas lÄ«menis">
 <!ENTITY torbutton.prefs.sec_low "Zems (noklusÄ“juma vÄ“rtÄ«ba)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "VidÄ“ji zems">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "VidÄ“ji augsts">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "Augsts">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "PielÄgotas vÄ“rtÄ«bas">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/mg/torbutton.dtd b/mg/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/mg/torbutton.dtd
+++ b/mg/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/mi/torbutton.dtd b/mi/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/mi/torbutton.dtd
+++ b/mi/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/mk/torbutton.dtd b/mk/torbutton.dtd
index 09e57ca..93ec085 100644
--- a/mk/torbutton.dtd
+++ b/mk/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/ml/torbutton.dtd b/ml/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/ml/torbutton.dtd
+++ b/ml/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/mn/torbutton.dtd b/mn/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/mn/torbutton.dtd
+++ b/mn/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/mr/torbutton.dtd b/mr/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/mr/torbutton.dtd
+++ b/mr/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/ms_MY/torbutton.dtd b/ms_MY/torbutton.dtd
index 44f4f88..252d770 100644
--- a/ms_MY/torbutton.dtd
+++ b/ms_MY/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Ubah butir-butir yang membezakan anda daripada pengguna lain Pelayar Tor">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/mt/torbutton.dtd b/mt/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/mt/torbutton.dtd
+++ b/mt/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/my/torbutton.dtd b/my/torbutton.dtd
index 81aa01b..c8e8f8c 100644
--- a/my/torbutton.dtd
+++ b/my/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/nah/torbutton.dtd b/nah/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/nah/torbutton.dtd
+++ b/nah/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/nap/torbutton.dtd b/nap/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/nap/torbutton.dtd
+++ b/nap/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/nb/torbutton.dtd b/nb/torbutton.dtd
index 8cc0b77..1cc0fcd 100644
--- a/nb/torbutton.dtd
+++ b/nb/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Endre detaljer som skiller deg fra andre Tor Browser brukere.">
 <!ENTITY torbutton.prefs.sec_caption "Sikkerhets nivÃ¥">
 <!ENTITY torbutton.prefs.sec_low "Lav (standard)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-lav">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-hÃ¸y">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "HÃ¸y">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Egenspesifiserte verdier">
 <!ENTITY torbutton.circuit_display.title "Tor-krets for denne siden">
+
diff --git a/nds/torbutton.dtd b/nds/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/nds/torbutton.dtd
+++ b/nds/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/ne/torbutton.dtd b/ne/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/ne/torbutton.dtd
+++ b/ne/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/nl/torbutton.dtd b/nl/torbutton.dtd
index 4e48991..1044f3b 100644
--- a/nl/torbutton.dtd
+++ b/nl/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Verander details die je onderscheiden van andere Tor Browser gebruikers">
 <!ENTITY torbutton.prefs.sec_caption "Beveiligingsniveau">
 <!ENTITY torbutton.prefs.sec_low "Laag (standaard)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Laag">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-Hoog">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "Hoog">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Aangepaste waarden">
 <!ENTITY torbutton.circuit_display.title "Tor circuit voor deze website">
+
diff --git a/nl_BE/torbutton.dtd b/nl_BE/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/nl_BE/torbutton.dtd
+++ b/nl_BE/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/nn/torbutton.dtd b/nn/torbutton.dtd
index 4416735..166fb3d 100644
--- a/nn/torbutton.dtd
+++ b/nn/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "TryggingsnivÃ¥">
 <!ENTITY torbutton.prefs.sec_low "LÃ¥g (standard)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-lÃ¥g">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-hÃ¸g">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "HÃ¸g">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "SjÃ¸lvvalde verdiar">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/nso/torbutton.dtd b/nso/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/nso/torbutton.dtd
+++ b/nso/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/oc/torbutton.dtd b/oc/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/oc/torbutton.dtd
+++ b/oc/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/or/torbutton.dtd b/or/torbutton.dtd
index a37ddb8..69a214a 100644
--- a/or/torbutton.dtd
+++ b/or/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/pa/torbutton.dtd b/pa/torbutton.dtd
index 07334d9..670c60c 100644
--- a/pa/torbutton.dtd
+++ b/pa/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/pap/torbutton.dtd b/pap/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/pap/torbutton.dtd
+++ b/pap/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/pl/torbutton.dtd b/pl/torbutton.dtd
index 0e16322..b445997 100644
--- a/pl/torbutton.dtd
+++ b/pl/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "ZmieÅ„ szczegÃ³Å‚y odrÃ³Å¼niajÄ…ce CiÄ™ od innych uÅ¼ytkownikÃ³w PrzeglÄ…darki Tora">
 <!ENTITY torbutton.prefs.sec_caption "Poziom bezpieczeÅ„stwa">
 <!ENTITY torbutton.prefs.sec_low "Niski (domyÅ›lny)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Åšredni-Niski">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Åšredni-Wysoki">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "Wysoki">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "WartoÅ›ci niestandardowe">
 <!ENTITY torbutton.circuit_display.title "ObwÃ³d Tor dla tej strony">
+
diff --git a/pms/torbutton.dtd b/pms/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/pms/torbutton.dtd
+++ b/pms/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/ps/torbutton.dtd b/ps/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/ps/torbutton.dtd
+++ b/ps/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/pt/torbutton.dtd b/pt/torbutton.dtd
index 0ed9ab4..4542633 100644
--- a/pt/torbutton.dtd
+++ b/pt/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "NÃvel de SeguranÃ§a">
 <!ENTITY torbutton.prefs.sec_low "Baixo (prÃ©-definido)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "MÃ©dio-Baixo">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "MÃ©dio-Alto">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "Alto">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Valores definidos">
 <!ENTITY torbutton.circuit_display.title "Circuito Tor para este site">
+
diff --git a/pt_BR/torbutton.dtd b/pt_BR/torbutton.dtd
index 6cd66d4..57bf10d 100644
--- a/pt_BR/torbutton.dtd
+++ b/pt_BR/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Alterar os detalhes  que distinguem vocÃª de outros usuÃ¡rios do Navegador Tor">
 <!ENTITY torbutton.prefs.sec_caption "NÃvel de SeguranÃ§a">
 <!ENTITY torbutton.prefs.sec_low "Baixo (padrÃ£o)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "MÃ©dia-Baixa">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "MÃ©dio-Alto">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "Alta">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Valores Personalizados">
 <!ENTITY torbutton.circuit_display.title "Circuito Tor para este site">
+
diff --git a/ro/torbutton.dtd b/ro/torbutton.dtd
index f0b5017..73f2cd4 100644
--- a/ro/torbutton.dtd
+++ b/ro/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Nivel securitate">
 <!ENTITY torbutton.prefs.sec_low "ScÄƒzut (implicit)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Mediu-scÄƒzut">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Mediu-Ã®nalt">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "ÃŽnalt">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Valori personalizate">
 <!ENTITY torbutton.circuit_display.title "Circuit Tor pentru acest site">
+
diff --git a/ru/torbutton.dtd b/ru/torbutton.dtd
index 8312162..4d472cb 100644
--- a/ru/torbutton.dtd
+++ b/ru/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Ð˜Ð·Ð¼ÐµÐ½Ð¸Ñ‚ÑŒ ÑÐ²ÐµÐ´ÐµÐ½Ð¸Ñ, Ð¾Ñ‚Ð»Ð¸Ñ‡Ð°ÑŽÑ‰Ð¸Ðµ Ð²Ð°Ñ Ð¾Ñ‚ Ð´Ñ€ÑƒÐ³Ð¸Ñ… Ð¿Ð¾Ð»ÑŒÐ·Ð¾Ð²Ð°Ñ‚ÐµÐ»ÐµÐ¹ Tor Browser">
 <!ENTITY torbutton.prefs.sec_caption "Ð£Ñ€Ð¾Ð²ÐµÐ½ÑŒ Ð±ÐµÐ·Ð¾Ð¿Ð°ÑÐ½Ð¾ÑÑ‚Ð¸">
 <!ENTITY torbutton.prefs.sec_low "ÐÐ¸Ð·ÐºÐ¸Ð¹ (Ð¿Ð¾ ÑƒÐ¼Ð¾Ð»Ñ‡Ð°Ð½Ð¸ÑŽ)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Ð¡Ñ€ÐµÐ´Ð½Ð¸Ð¹">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Ð£Ð¼ÐµÑ€ÐµÐ½Ð½Ð¾ Ð²Ñ‹ÑÐ¾ÐºÐ¸Ð¹">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "Ð’Ñ‹ÑÐ¾ÐºÐ¸Ð¹">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Ð¡Ð¾Ð±ÑÑ‚Ð²ÐµÐ½Ð½Ñ‹Ðµ Ð·Ð½Ð°Ñ‡ÐµÐ½Ð¸Ñ">
 <!ENTITY torbutton.circuit_display.title "Ð¦ÐµÐ¿Ð¾Ñ‡ÐºÐ° Tor Ð´Ð»Ñ ÑÑ‚Ð¾Ð³Ð¾ ÑÐ°Ð¹Ñ‚Ð°">
+
diff --git a/ru at petr1708/torbutton.dtd b/ru at petr1708/torbutton.dtd
index 16f8042..c15264a 100644
--- a/ru at petr1708/torbutton.dtd
+++ b/ru at petr1708/torbutton.dtd
@@ -168,8 +168,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Ð˜Ð·Ð¼Ñ£Ð½Ð¸Ñ‚ÑŒ ÑÐ²Ñ£Ð´Ñ£Ð½Ñ–Ñ, Ð¾Ñ‚Ð»Ð¸Ñ‡Ð°ÑŽÑ‰Ñ–Ñ Ð²Ð°ÑÑŠ Ð¾Ñ‚ÑŠ Ð´Ñ€ÑƒÐ³Ð¸Ñ…ÑŠ Ð¿Ð¾Ð»ÑŒÐ·Ð¾Ð²Ð°Ñ‚ÐµÐ»ÐµÐ¹ Tor Browser">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/scn/torbutton.dtd b/scn/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/scn/torbutton.dtd
+++ b/scn/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/sco/torbutton.dtd b/sco/torbutton.dtd
index 4349606..ba4a760 100644
--- a/sco/torbutton.dtd
+++ b/sco/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish ye fae ither Tor Brouser uisers">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/si/torbutton.dtd b/si/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/si/torbutton.dtd
+++ b/si/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/si_LK/torbutton.dtd b/si_LK/torbutton.dtd
index 17b27e9..9c81951 100644
--- a/si_LK/torbutton.dtd
+++ b/si_LK/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "à¶…à¶±à·’à¶à·Š Tor à¶¶à·Šâ€à¶»à·€à·Šà·ƒà¶» à¶·à·à·€à·’à¶à· à¶šà¶»à¶±à·Šà¶±à¶±à·Šà¶œà·™à¶±à·Š à¶”à¶¶ à·€à·™à¶±à·Š à¶šà¶» à·„à¶¯à·”à¶±à·à¶œà¶±à·Šà¶±à· à·€à·’à·ƒà·Šà¶à¶» à·€à·™à¶±à·ƒà·Š à¶šà¶»à¶±à·Šà¶±">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/sk/torbutton.dtd b/sk/torbutton.dtd
index 4827ebe..024fa59 100644
--- a/sk/torbutton.dtd
+++ b/sk/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Level BezpeÄnosti">
 <!ENTITY torbutton.prefs.sec_low "NÃzky (pÃ´vodnÃ©)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "StrednÃ½-nÃzky">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "StrednÃ½-VysokÃ½">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "VysokÃ½">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "VlastnÃ© parametre">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/sk_SK/torbutton.dtd b/sk_SK/torbutton.dtd
index 5c70433..3d195e1 100644
--- a/sk_SK/torbutton.dtd
+++ b/sk_SK/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "ZmeniÅ¥ detaily, ktorÃ© vÃ¡s odliÅ¡ujÃº od ostatnÃ½ch uÅ¾ÃvateÄ¾ov Tor Browser">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/sl/torbutton.dtd b/sl/torbutton.dtd
index cfa202d..998263e 100644
--- a/sl/torbutton.dtd
+++ b/sl/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/sl_SI/torbutton.dtd b/sl_SI/torbutton.dtd
index 3758214..76651a8 100644
--- a/sl_SI/torbutton.dtd
+++ b/sl_SI/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Spremeni podatke, ki vas loÄijo od drugih uporabnikov Tor Browser">
 <!ENTITY torbutton.prefs.sec_caption "Varnostni nivo">
 <!ENTITY torbutton.prefs.sec_low "Nizek (privzeto)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Srednji - Nizek">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Srednji - Visok">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "Visok">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Vrednosti po meri">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/sn/torbutton.dtd b/sn/torbutton.dtd
index de1fdcd..463c96a 100644
--- a/sn/torbutton.dtd
+++ b/sn/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/so/torbutton.dtd b/so/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/so/torbutton.dtd
+++ b/so/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/son/torbutton.dtd b/son/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/son/torbutton.dtd
+++ b/son/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/sq/torbutton.dtd b/sq/torbutton.dtd
index 52af1d6..52454ae 100644
--- a/sq/torbutton.dtd
+++ b/sq/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Ndryshojini hollÃ«sitÃ« qÃ« ju dallojnÃ« nga pÃ«rdoruesit e tjerÃ« tÃ« Shfletuesit Tor">
 <!ENTITY torbutton.prefs.sec_caption "Niveli i sigurisÃ«">
 <!ENTITY torbutton.prefs.sec_low "E ulÃ«t (me parazgjedhje)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Mesatare-E ulÃ«t">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Mesatare-E lartÃ«">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "E lartÃ«">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Vlera tÃ« PÃ«rshtatura">
 <!ENTITY torbutton.circuit_display.title "Cirkuiti i Tor-it pÃ«r kÃ«tÃ« webfaqe">
+
diff --git a/sr/torbutton.dtd b/sr/torbutton.dtd
index 93a0e15..41f0498 100644
--- a/sr/torbutton.dtd
+++ b/sr/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Promenite detalje koji vas razlikuju od drugih korisnika Tor pretrazivaca.">
 <!ENTITY torbutton.prefs.sec_caption "ÐÐ¸Ð²Ð¾ Ð±ÐµÐ·Ð±ÐµÐ´Ð½Ð¾ÑÑ‚Ð¸">
 <!ENTITY torbutton.prefs.sec_low "ÐÐ¸Ð·Ð°Ðº (Ð¿Ð¾Ð´Ñ€Ð°Ð·ÑƒÐ¼ÐµÐ²Ð°Ð½Ð¾)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Ð¡Ñ€ÐµÐ´ÑšÐµ-Ð½Ð¸Ð·Ð°Ðº">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Ð¡Ñ€ÐµÐ´ÑšÐµ-Ð²Ð¸ÑÐ¾Ðº">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "Ð’Ð¸ÑÐ¾Ðº">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "ÐÐ°Ð¼ÐµÐ½ÑÐºÐµ Ð²Ñ€ÐµÐ´Ð½Ð¾ÑÑ‚Ð¸">
 <!ENTITY torbutton.circuit_display.title "Ð¢Ð¾Ñ€ ÑÐ¿Ð¾Ñ˜ Ð·Ð° Ð¾Ð²Ð°Ñ˜ ÑÐ°Ñ˜Ñ‚">
+
diff --git a/sr at latin/torbutton.dtd b/sr at latin/torbutton.dtd
index 2d5a9c8..f25b61c 100644
--- a/sr at latin/torbutton.dtd
+++ b/sr at latin/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/st/torbutton.dtd b/st/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/st/torbutton.dtd
+++ b/st/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/su/torbutton.dtd b/su/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/su/torbutton.dtd
+++ b/su/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/sv/torbutton.dtd b/sv/torbutton.dtd
index c5d9a6d..d4de340 100644
--- a/sv/torbutton.dtd
+++ b/sv/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Ã„ndra detailjer som utmÃ¤rker dig ifrÃ¥n andra Tor Browser anvÃ¤ndare">
 <!ENTITY torbutton.prefs.sec_caption "SÃ¤kerhetsnivÃ¥">
 <!ENTITY torbutton.prefs.sec_low "LÃ¥g (fÃ¶rvald)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-lÃ¥g">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-hÃ¶g">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "HÃ¶g">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Anpassad nivÃ¥">
 <!ENTITY torbutton.circuit_display.title "Tor circuit fÃ¶r den hÃ¤r sajten">
+
diff --git a/sw/torbutton.dtd b/sw/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/sw/torbutton.dtd
+++ b/sw/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/szl/torbutton.dtd b/szl/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/szl/torbutton.dtd
+++ b/szl/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/ta/torbutton.dtd b/ta/torbutton.dtd
index 4297ddf..74c6a8d 100644
--- a/ta/torbutton.dtd
+++ b/ta/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "à®¤à®©à®¿à®•à¯ à®¨à®¿à®²à¯ˆ">
 <!ENTITY torbutton.prefs.sec_low "à®•à¯à®±à¯ˆà®¨à¯à®¤ (à®‡à®¯à®²à¯à®ªà¯à®¨à®¿à®²à¯ˆ)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "à®®à®¿à®¤à®®à®¾à®©">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "à®¨à®Ÿà¯à®¤à¯à®¤à®° à®‰à®¯à®°à¯">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "à®‰à®¯à®°à¯">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "à®µà®¿à®°à¯à®ªà¯à®ª à®•à®²à®¾à®šà¯à®šà®¾à®°à®®à¯">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/te/torbutton.dtd b/te/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/te/torbutton.dtd
+++ b/te/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/te_IN/torbutton.dtd b/te_IN/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/te_IN/torbutton.dtd
+++ b/te_IN/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/tg/torbutton.dtd b/tg/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/tg/torbutton.dtd
+++ b/tg/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/th/torbutton.dtd b/th/torbutton.dtd
index 92368ec..3940337 100644
--- a/th/torbutton.dtd
+++ b/th/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "à¸£à¸°à¸”à¸±à¸šà¸„à¸§à¸²à¸¡à¸›à¸¥à¸à¸”à¸ à¸±à¸¢">
 <!ENTITY torbutton.prefs.sec_low "à¸•à¹ˆà¸³ (à¸„à¹ˆà¸²à¹€à¸£à¸´à¹ˆà¸¡à¸•à¹‰à¸™)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "à¸à¸¥à¸²à¸‡-à¸•à¹ˆà¸³">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "à¸à¸¥à¸²à¸‡-à¸ªà¸¹à¸‡">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "à¸ªà¸¹à¸‡">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "à¸„à¹ˆà¸²à¸—à¸µà¹ˆà¸à¸³à¸«à¸™à¸”à¹€à¸à¸‡">
 <!ENTITY torbutton.circuit_display.title "à¸§à¸‡à¸ˆà¸£ Tor à¸ªà¸³à¸«à¸£à¸±à¸šà¹„à¸‹à¸—à¹Œà¸™à¸µà¹‰">
+
diff --git a/ti/torbutton.dtd b/ti/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/ti/torbutton.dtd
+++ b/ti/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/tk/torbutton.dtd b/tk/torbutton.dtd
index 223c02d..104bf3d 100644
--- a/tk/torbutton.dtd
+++ b/tk/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/tl_PH/torbutton.dtd b/tl_PH/torbutton.dtd
index 0477f93..6f15f73 100644
--- a/tl_PH/torbutton.dtd
+++ b/tl_PH/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/tr/torbutton.dtd b/tr/torbutton.dtd
index 7950046..d0ab6ce 100644
--- a/tr/torbutton.dtd
+++ b/tr/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "DiÄŸer Tor kullanÄ±cÄ±lardan sizi ayÄ±ran detaylarÄ± deÄŸiÅŸtir">
 <!ENTITY torbutton.prefs.sec_caption "GÃ¼venlik Seviyesi">
 <!ENTITY torbutton.prefs.sec_low "DÃ¼ÅŸÃ¼k (varsayÄ±lan)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Orta-DÃ¼ÅŸÃ¼k">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Orta-YÃ¼ksek">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "YÃ¼ksek">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Ã–zel DeÄŸerler">
 <!ENTITY torbutton.circuit_display.title "Bu site iÃ§in Tor devresi">
+
diff --git a/ug at Arab/torbutton.dtd b/ug at Arab/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/ug at Arab/torbutton.dtd
+++ b/ug at Arab/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/uk/torbutton.dtd b/uk/torbutton.dtd
index 80c808f..9aad41e 100644
--- a/uk/torbutton.dtd
+++ b/uk/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Ð—Ð¼Ñ–Ð½Ð¸Ñ‚Ð¸ Ð²Ñ–Ð´Ð¾Ð¼Ð¾ÑÑ‚Ñ–, Ñ‰Ð¾ Ð²Ñ–Ð´Ñ€Ñ–Ð·Ð½ÑÑŽÑ‚ÑŒ Ð²Ð°Ñ Ð²Ñ–Ð´ Ñ–Ð½ÑˆÐ¸Ñ… ÐºÐ¾Ñ€Ð¸ÑÑ‚ÑƒÐ²Ð°Ñ‡Ñ–Ð² Ð¿ÐµÑ€ÐµÐ³Ð»ÑÐ´Ð°Ñ‡Ð° Tor">
 <!ENTITY torbutton.prefs.sec_caption "Ð Ñ–Ð²ÐµÐ½ÑŒ Ð±ÐµÐ·Ð¿ÐµÐºÐ¸">
 <!ENTITY torbutton.prefs.sec_low "ÐÐ¸Ð·ÑŒÐºÐ¸Ð¹ (Ð¿Ð¾ Ð·Ð°Ð¼Ð¾Ð²Ñ‡ÑƒÐ²Ð°Ð½Ð½ÑŽ)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "ÐÐ¸Ð¶Ñ‡Ðµ ÑÐµÑ€ÐµÐ´Ð½ÑŒÐ¾Ð³Ð¾">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Ð’Ð¸Ñ‰Ðµ ÑÐµÑ€ÐµÐ´Ð½ÑŒÐ¾Ð³Ð¾">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "Ð’Ð¸ÑÐ¾ÐºÐ¸Ð¹">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "ÐÐµÑÑ‚Ð°Ð½Ð´Ð°Ñ€Ñ‚Ð½Ñ– Ð·Ð½Ð°Ñ‡ÐµÐ½Ð½Ñ">
 <!ENTITY torbutton.circuit_display.title "Ð¡Ñ…ÐµÐ¼Ð° Tor Ð´Ð»Ñ Ñ†ÑŒÐ¾Ð³Ð¾ ÑÐ°Ð¹Ñ‚Ñƒ">
+
diff --git a/ur/torbutton.dtd b/ur/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/ur/torbutton.dtd
+++ b/ur/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/ur_PK/torbutton.dtd b/ur_PK/torbutton.dtd
index 63c9ff3..01b465d 100644
--- a/ur_PK/torbutton.dtd
+++ b/ur_PK/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/uz/torbutton.dtd b/uz/torbutton.dtd
index a8d45a8..fceaae3 100644
--- a/uz/torbutton.dtd
+++ b/uz/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/ve/torbutton.dtd b/ve/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/ve/torbutton.dtd
+++ b/ve/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/vi/torbutton.dtd b/vi/torbutton.dtd
index 5378f43..cd3d3ce 100644
--- a/vi/torbutton.dtd
+++ b/vi/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/wa/torbutton.dtd b/wa/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/wa/torbutton.dtd
+++ b/wa/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/wo/torbutton.dtd b/wo/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/wo/torbutton.dtd
+++ b/wo/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/yo/torbutton.dtd b/yo/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/yo/torbutton.dtd
+++ b/yo/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/zh_CN/torbutton.dtd b/zh_CN/torbutton.dtd
index 4ea94a8..dde7594 100644
--- a/zh_CN/torbutton.dtd
+++ b/zh_CN/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "è¯·ä¿®æ”¹åŒºåˆ«ä½ ä¸Žå…¶ä»– Tor æµè§ˆå™¨ç”¨æˆ·çš„è¯¦ç»†ä¿¡æ¯">
 <!ENTITY torbutton.prefs.sec_caption "å®‰å…¨ç‰çº§">
 <!ENTITY torbutton.prefs.sec_low "ä½Žï¼ˆé»˜è®¤ï¼‰">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "ä¸ä½Ž">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "ä¸é«˜">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "é«˜">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "è‡ªå®šä¹‰">
 <!ENTITY torbutton.circuit_display.title "è¯¥ç«™ç‚¹æ‰€ç”¨çš„ Tor çº¿è·¯">
+
diff --git a/zh_HK/torbutton.dtd b/zh_HK/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/zh_HK/torbutton.dtd
+++ b/zh_HK/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/zh_TW/torbutton.dtd b/zh_TW/torbutton.dtd
index 6e5b988..1b4929d 100644
--- a/zh_TW/torbutton.dtd
+++ b/zh_TW/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "è®Šæ›´å€åˆ†æ‚¨èˆ‡å…¶ä»– Tor ç€è¦½å™¨ä½¿ç”¨è€…çš„è©³ç´°è³‡è¨Š">
 <!ENTITY torbutton.prefs.sec_caption "å®‰å…¨ç‰ç´š">
 <!ENTITY torbutton.prefs.sec_low "ä½Ž(é è¨)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "ä¸-ä½Ž">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "ä¸-é«˜">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "é«˜">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "è‡ªè¨‚è¨å®š">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+
diff --git a/zu/torbutton.dtd b/zu/torbutton.dtd
index 89a047d..3e5ff86 100644
--- a/zu/torbutton.dtd
+++ b/zu/torbutton.dtd
@@ -153,8 +153,35 @@
 <!ENTITY torbutton.prefs.resist_fingerprinting "Change details that distinguish you from other Tor Browser users">
 <!ENTITY torbutton.prefs.sec_caption "Security Level">
 <!ENTITY torbutton.prefs.sec_low "Low (default)">
+<!ENTITY torbutton.prefs.sec_low_usable_desc "This provides the most usable experience.">
+<!ENTITY torbutton.prefs.sec_low_desc "At this security level, all browser features are enabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_svg_tooltip "The SVG OpenType font rendering mechanism is disabled.">
 <!ENTITY torbutton.prefs.sec_med_low "Medium-Low">
+<!ENTITY torbutton.prefs.sec_gen_desc "At this security level, the following changes apply (mouseover for details):">
+<!ENTITY torbutton.prefs.sec_html5_desc "HTML5 video and audio media become click-to-play via NoScript.">
+<!ENTITY torbutton.prefs.sec_html5_tooltip "On some sites, you might need to use the NoScript toolbar button to enable these media objects.">
+<!ENTITY torbutton.prefs.sec_some_jit_desc "Some JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_jit_desc_tooltip "ION JIT, Type Inference, ASM.JS.">
+<!ENTITY torbutton.prefs.sec_baseline_jit_desc_tooltip "Baseline JIT.">
+<!ENTITY torbutton.prefs.sec_jit_slower_desc "Scripts on some sites may run slower.">
+<!ENTITY torbutton.prefs.sec_jar_desc "Remote JAR files are blocked.">
+<!ENTITY torbutton.prefs.sec_jar_tooltip "JAR files are extremely rare on the web, but can be a source of XSS and other attacks.">
+<!ENTITY torbutton.prefs.sec_mathml_desc "Some mechanisms of displaying math equations are disabled.">
+<!ENTITY torbutton.prefs.sec_mathml_desc_tooltip "MathML is disabled.">
 <!ENTITY torbutton.prefs.sec_med_high "Medium-High">
+<!ENTITY torbutton.prefs.sec_all_jit_desc "All JavaScript performance optimizations are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_desc "Some font rendering features are disabled.">
+<!ENTITY torbutton.prefs.sec_font_rend_graphite_tooltip "The Graphite font rendering mechanism is disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc "Some types of images are disabled.">
+<!ENTITY torbutton.prefs.sec_svg_desc_tooltip "SVG images are disabled.">
+<!ENTITY torbutton.prefs.sec_js_https_desc "JavaScript is disabled by default on all non-HTTPS sites.">
+<!ENTITY torbutton.prefs.sec_js_desc_tooltip "JavaScript can be enabled on a per-site basis via the NoScript toolbar button.">
 <!ENTITY torbutton.prefs.sec_high "High">
+<!ENTITY torbutton.prefs.sec_all_js_desc "JavaScript is disabled by default on all sites.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc "Most audio and video formats are disabled.">
+<!ENTITY torbutton.prefs.sec_audio_video_desc_tooltip "WebM is the only codec that remains enabled.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc "Some fonts and icons may display incorrectly.">
+<!ENTITY torbutton.prefs.sec_webfonts_desc_tooltip "Website-provided font files are blocked.">
 <!ENTITY torbutton.prefs.sec_custom "Custom Values">
 <!ENTITY torbutton.circuit_display.title "Tor circuit for this site">
+

