GitLab

at 2024-05-06T19:17:14+02:00

Bug 1819160 - Map Android ids to doc/accessible id pairs. r=Jamie

Differential Revision: https://phabricator.services.mozilla.com/D179737
Bug 1832523 - Allow using NSS to sign and verify MAR signatures. r=application-update-reviewers,glandium,bytesized

Allow using NSS for checking MAR signatures also in platforms where
OS-native APIs are used by default, i.e., macOS and Windows.

Differential Revision: https://phabricator.services.mozilla.com/D177743
Bug 1849129: Prevent exceptions caused by extensions from interrupting the SearchService initialization. r=search-reviewers,Standard8

Differential Revision: https://phabricator.services.mozilla.com/D186456
Bug 1853731 - Use html:img for message-bar-icon. r=Gijs,dao,settings-reviewers,desktop-theme-reviewers,sfoster

Differential Revision: https://phabricator.services.mozilla.com/D188521
Bug 1854117 - Sort the DLL blocklist flags. r=mossop,win-reviewers,gstoll

Differential Revision: https://phabricator.services.mozilla.com/D188716
Bug 1738426 - Ignoring status 206 and vary header checking for opaque response in Cache API. r=asuth

Differential Revision: https://phabricator.services.mozilla.com/D186431
Bug 1802057 - Block the following characters from use in the cookie name in the cookie string: 0x3B (semi-colon), 0x3D (equals), and 0x7F (del) r=dveditz,cookie-reviewers

Differential Revision: https://phabricator.services.mozilla.com/D182373

Bug 1819497 - Don't race on static bool for initialization. r=gfx-reviewers,aosmond

We could do non-racy static init here (e.g. with a static initializer
self-calling-closure), but there doesn't seem to be a strong reason for
this. Let's just use a switch and get robustness from -Werror=switch.

Differential Revision: https://phabricator.services.mozilla.com/D188054
Bug 1845752. r=ckerschb

Differential Revision: https://phabricator.services.mozilla.com/D186676
Bug 1849186 - Add a preference not to expose the content title in the window title. r=Gijs,tabbrowser-reviewers,dao

Differential Revision: https://phabricator.services.mozilla.com/D190496

Bug 1850072: Initialize RecordedDrawTargetCreation::mHasExistingData. r=jrmuizel

This also specializes ElementStreamFormat for bool.

Differential Revision: https://phabricator.services.mozilla.com/D187794
Bug 1850200 - Add delay to HTTPS-Only "Continue to HTTPS Site" button r=freddyb

Differential Revision: https://phabricator.services.mozilla.com/D187887
Bug 1851803 - Introduce SourceMediaTrack::mDirectDisabledMode. r=karlt

Similar to MediaTrack::mDisabledMode, but this is for uses on the
SourceMediaTrack producer thread. It is still signaled via a control message
from the control thread to maintain order of operations, and is protected by the
SourceMediaTrack mutex.

Differential Revision: https://phabricator.services.mozilla.com/D187554
Bug 1860020 - Remove the assertion on the value of toolkit.telemetry.enabled. r=KrisWright,chutten

Bug 1444275 introduced an assertion on the parent process to check that
the value of toolkit.telemetry.enabled is the expected one.
However, this expected value could be different from the one set and
locked e.g. in some forks. Therefore, the assertion prevented debug
builds from working in these cases.

Differential Revision: https://phabricator.services.mozilla.com/D195080
Bug 1865238 - Use One UI Sans KR VF for Korean sans-serif font on Android r=jfkthame

Per /etc/fonts.xml, there are now only two `<family lang="ko">` nodes there:

* OneUISansKRVF series
* SECCJK series (but no KR postfix anymore?)

This patch uses One UI Sans KR VF as the replacement as this is newer and is a variable font (tested with https://codepen.io/SaschaNaz/pen/ExrdYXJ)

Differential Revision: https://phabricator.services.mozilla.com/D195078
Bug 1873526: Refactor the restriction override list from a big if statement to a list r=KrisWright

Differential Revision: https://phabricator.services.mozilla.com/D198081

Bug 1875306 - Localize numbers in the underflow and overflow error messages. r=emilio

Differential Revision: https://phabricator.services.mozilla.com/D198965
Bug 1875313 - Use en-US as a fallback when spoof English is enabled in ICUUtils. r=timhuang,tjr

Differential Revision: https://phabricator.services.mozilla.com/D198967

Bug 1880988 - Apply spoof English to the default detail summary. r=emilio

Differential Revision: https://phabricator.services.mozilla.com/D202203
Bug 1885258: Hidden fonts should obey the allow list r=jfkthame

Differential Revision: https://phabricator.services.mozilla.com/D204571
Bug 41454: Move focus after calling openPreferences for a sub-category.

Temporary fix until mozilla bug 1799153 gets a patch upstream.

Bug 42194: Fix blank net error page on failed DNS resolution with active proxy.

Bug 41483: Remove the firefox override for appstrings.properties

Remove this patch after upstream bugzilla bug 1790187

Bug 41116: Normalize system fonts.

System fonts are an enormous fingerprinting vector.
Even with font allow lists and with our custom configuration on Linux,
which counter metrics measurements, getComputedStyle leaks several
details.
This patch counters both these kinds of attacks.

fixup! Bug 41116: Normalize system fonts.

Bug 42529: Fix the breakage of this patch on Android.

Also, improve the patch hoping I can finally uplift it.

Bug 41459: WebRTC fails to build under mingw (Part 1)

- properly define NOMINMAX for just MSVC builds

Bug 41459: WebRTC fails to build under mingw (Part 2)

- fixes required to build third_party/libwebrtc

Bug 41459: WebRTC fails to build under mingw (Part 3)

- fixes required to build third_party/sipcc

Bug 41459: WebRTC fails to build under mingw (Part 4)

- fixes requried to build netwerk/sctp

Bug 41459: WebRTC fails to build under mingw (Part 5)

- fixes required to build dom/media/webrtc

Bug 41459: WebRTC fails to build under mingw (Part 6)

- fixes required to build dom/media/systemservices

Bug 41854: Allow overriding download spam protection.

Adding issue and merge request templates

Base Browser's .mozconfigs.

Bug 17858: Cannot create incremental MARs for hardened builds.
Define HOST_CFLAGS, etc. to avoid compiling programs such as mbsdiff
(which is part of mar-tools and is not distributed to end-users) with
ASan.

Bug 21849: Don't allow SSL key logging.

Bug 25741 - TBA: Disable features at compile-time

Define MOZ_ANDROID_NETWORK_STATE and MOZ_ANDROID_LOCATION

Bug 27623 - Export MOZILLA_OFFICIAL during desktop builds

This fixes a problem where some preferences had the wrong default value.
Also see bug 27472 where we made a similar fix for Android.

Bug 29859: Disable HLS support for now

Bug 30463: Explicitly disable MOZ_TELEMETRY_REPORTING

Bug 32493: Disable MOZ_SERVICES_HEALTHREPORT

Bug 33734: Set MOZ_NORMANDY to False

Bug 33851: Omit Parental Controls.

Bug 40252: Add --enable-rust-simd to our tor-browser mozconfig files

Bug 41584: Move some configuration options to base-browser level

Tweaks to the build system

Bug 40857: Modified the fat .aar creation file

This is a workaround to build fat .aars with the compiling enviornment
disabled.
Mozilla does not use a similar configuration, but either runs a Firefox
build and discards its output, or uses artifacts build.

We might switch to artifact builds too, and drop this patch, or write a
better one to upstream. But until then we need this patch.

See also https://bugzilla.mozilla.org/show_bug.cgi?id=1763770.

Bug 41458: Prevent `mach package-multi-locale` from actually creating a package

macOS builds need some files to be moved around with
./mach package-multi-locale to create multi-locale packages.
The required command isn't exposed through any other mach command.
So, we patch package-multi-locale both to prevent it from failing when
doing official builds and to detect any future changes on it.

Bug 41108: Remove privileged macOS installation from 102

Bug 41149: Re-enable DLL injection protection in all builds not just nightlies

Bug 24796: Comment out excess permissions from GeckoView

The GeckoView AndroidManifest.xml is not preprocessed unlike Fennec's
manifest, so we can't use the ifdef preprocessor guards around the
permissions we do not want. Commenting the permissions is the
next-best-thing.

Bug 28125: Prevent non-Necko network connections

Bug 12974: Disable NTLM and Negotiate HTTP Auth

The Mozilla bugs: https://bugzilla.mozilla.org/show_bug.cgi?id=1046421,
https://bugzilla.mozilla.org/show_bug.cgi?id=1261591, tor-browser#27602

Bug 40166: Disable security.certerrors.mitm.auto_enable_enterprise_roots

Bugzilla: https://bugzilla.mozilla.org/show_bug.cgi?id=1768899

Bug 16285: Exclude ClearKey system for now

In the past the ClearKey system had not been compiled when specifying
--disable-eme. But that changed and it is even bundled nowadays (see:
Mozilla's bug 1300654). We don't want to ship it right now as the use
case for it is not really visible while the code had security
vulnerabilities in the past.

Bug 21431: Clean-up system extensions shipped in Firefox

Only ship the pdfjs extension.

Bug 33852: Clean up about:logins (LockWise) to avoid mentioning sync, etc.

Hide elements on about:logins that mention sync, "Firefox LockWise", and
Mozilla's LockWise mobile apps.

Disable the "Create New Login" button when security.nocertdb is true.

Bug 41457: Remove Mozilla permissions

Bug 40025: Remove Mozilla add-on install permissions

Bug 40002: Remove about:ion

Firefox Ion (previously Firefox Pioneer) is an opt-in program in which people
volunteer to participate in studies that collect detailed, sensitive data about
how they use their browser.

Bug 41662: Disable about:sync-logs

Even though we disable sync by default with
`identity.fxaccounts.enabled`, this about: page is still avilable.
We could throw an exception on the constructor of the related
component, but it would result only in an error in the console, without
a visible "this address does not look right" error page.
If we fix the issues with MOZ_SERVICES_SYNC, we can restore the
component.

Bug 26353: Prevent speculative connect that violated FPI.

Connections were observed in the catch-all circuit when
the user entered an https or http URL in the URL bar, or
typed a search term.

Bug 31740: Remove some unnecessary RemoteSettings instances

More concretely, SearchService.jsm 'hijack-blocklists' and
url-classifier-skip-urls.

Avoid creating instance for 'anti-tracking-url-decoration'.

If prefs are disabling their usage, avoid creating instances for
'cert-revocations' and 'intermediates'.

Do not ship JSON dumps for collections we do not expect to need. For
the ones in the 'main' bucket, this prevents them from being synced
unnecessarily (the code in remote-settings does so for collections
in the main bucket for which a dump or local data exists). For the
collections in the other buckets, we just save some size by not
shipping their dumps.

We also clear the collections database on the v2 -> v3 migration.

Bug 41092: Add a RemoteSettings JSON dump for query-stripping

Bug 41635: Disable the Normandy component

Do not include Normandy at all whenever MOZ_NORMANDY is False.

Bug 30541: Disable WebGL readPixel() for web content

Related Bugzilla: https://bugzilla.mozilla.org/show_bug.cgi?id=1428034

Bug 28369: Stop shipping pingsender executable

Bug 41568: Disable LaterRun

Bug 40717: Hide Windows SSO in settings

Bug 41599: Always return an empty string as network ID

Firefox computes an internal network ID used to detect network changes
and act consequently (e.g., to improve WebSocket UX).
However, there are a few ways to get this internal network ID, so we
patch them out, to be sure any new code will not be able to use them and
possibly link users.

We also sent a patch to Mozilla to seed the internal network ID, to
prevent any accidental leak in the future.
Upstream: https://bugzilla.mozilla.org/show_bug.cgi?id=1817756

Bug 40175: Add origin attributes to about:reader top-level requests

Bug 41327: Disable UrlbarProviderInterventions

Bug 42037: Disable about:firefoxview page

Firefox preference overrides.

This hack directly includes our preference changes in omni.ja.

Bug 18292: Staged updates fail on Windows

Temporarily disable staged updates on Windows.

Bug 18297: Use separate Noto JP,KR,SC,TC fonts

Bug 23404: Add Noto Sans Buginese to the macOS whitelist

Bug 23745: Set dom.indexedDB.enabled = true

Bug 13575: Disable randomised Firefox HTTP cache decay user tests.
(Fernando Fernandez Mancera <ffmancera@riseup.net>)

Bug 17252: Enable session identifiers with FPI

Session tickets and session identifiers were isolated
by OriginAttributes, so we can re-enable them by
allowing the default value (true) of
"security.ssl.disable_session_identifiers".

The pref "security.enable_tls_session_tickets" is obsolete
(removed in https://bugzilla.mozilla.org/917049)

Bug 14952: Enable http/2 and AltSvc

In Firefox, SPDY/HTTP2 now uses Origin Attributes for
isolation of connections, push streams, origin frames, etc.
That means we get first-party isolation provided
"privacy.firstparty.isolate" is true. So in this patch, we
stop overriding "network.http.spdy.enabled" and
"network.http.spdy.enabled.http2".

Alternate Services also use Origin Attributes for isolation.
So we stop overriding
"network.http.altsvc.enabled" and "network.http.altsvc.oe"
as well.

(All 4 of the abovementioned "network.http.*" prefs adopt
Firefox 60ESR's default value of true.)

However, we want to disable HTTP/2 push for now, so we
set "network.http.spdy.allow-push" to false.

"network.http.spdy.enabled.http2draft" was removed in Bug 1132357.
"network.http.sped.enabled.v2" was removed in Bug 912550.
"network.http.sped.enabled.v3" was removed in Bug 1097944.
"network.http.sped.enabled.v3-1" was removed in Bug 1248197.

Bug 26114: addons.mozilla.org is not special
* Don't expose navigator.mozAddonManager on any site
* Don't block NoScript from modifying addons.mozilla.org or other sites

Enable ReaderView mode again (#27281).

Bug 29916: Make sure enterprise policies are disabled

Bug 2874: Block Components.interfaces from content

Bug 26146: Spoof HTTP User-Agent header for desktop platforms

In Tor Browser 8.0, the OS was revealed in both the HTTP User-Agent
header and to JavaScript code via navigator.userAgent. To avoid
leaking the OS inside each HTTP request (which many web servers
log), always use the Windows 7 OS value in the desktop User-Agent
header. We continue to allow access to the actual OS via JavaScript,
since doing so improves compatibility with web applications such
as GitHub and Google Docs.

Bug 12885: Windows Jump Lists fail for Tor Browser

Jumplist entries are stored in a binary file in:
  %APPDATA%\\Microsoft\Windows\Recent\CustomDestinations\
and has a name in the form
  [a-f0-9]+.customDestinations-ms

The hex at the front is unique per app, and is ultimately derived from
something called the 'App User Model ID' (AUMID) via some unknown
hashing method. The AUMID is provided as a key when programmatically
creating, updating, and deleting a jumplist. The default behaviour in
firefox is for the installer to define an AUMID for an app, and save it
in the registry so that the jumplist data can be removed by the
uninstaller.

However, the Tor Browser does not set this (or any other) regkey during
installation, so this codepath fails and the app's AUMID is left
undefined. As a result the app's AUMID ends up being defined by
windows, but unknowable by Tor Browser. This unknown AUMID is used to
create and modify the jumplist, but the delete API requires that we
provide the app's AUMID explicitly. Since we don't know what the AUMID
is (since the expected regkey where it is normally stored does not
exist) jumplist deletion will fail and we will leave behind a mostly
empty customDestinations-ms file. The name of the file is derived from
the binary path, so an enterprising person could reverse engineer how
that hex name is calculated, and generate the name for Tor Browser's
default Desktop installation path to determine whether a person had
used Tor Browser in the past.

The 'taskbar.grouping.useprofile' option that is enabled by this patch
works around this AUMID problem by having firefox.exe create it's own
AUMID based on the profile path (rather than looking for a regkey). This
way, if a user goes in and enables and disables jumplist entries, the
backing store is properly deleted.

Unfortunately, all windows users currently have this file lurking in
the above mentioned directory and this patch will not remove it since it
was created with an unknown AUMID. However, another patch could be
written which goes to that directory and deletes any item containing the
'Tor Browser' string.  See bug 28996.

Bug 30845: Make sure default themes and other internal extensions are enabled

Bug 28896: Enable extensions in private browsing by default

Bug 31065: Explicitly allow proxying localhost

Bug 31598: Enable letterboxing

Disable Presentation API everywhere

Bug 21549 - Use Firefox's WASM default pref. It is disabled at safer
security levels.

Bug 32321: Disable Mozilla's MitM pings

Bug 19890: Disable installation of system addons

By setting the URL to "" we make sure that already installed system
addons get deleted as well.

Bug 22548: Firefox downgrades VP9 videos to VP8.

On systems where H.264 is not available or no HWA, VP9 is preferred. But in Tor
Browser 7.0 all youtube videos are degraded to VP8.

This behaviour can be turned off by setting media.benchmark.vp9.threshold to 0.
All clients will get better experience and lower traffic, beause TBB doesn't
use "Use hardware acceleration when available".

Bug 25741 - TBA: Add mobile-override of 000-tor-browser prefs

Bug 16441: Suppress "Reset Tor Browser" prompt.

Bug 29120: Use the in-memory media cache and increase its maximum size.

Bug 33697: use old search config based on list.json

Bug 33855: Ensure that site-specific browser mode is disabled.

Bug 30682: Disable Intermediate CA Preloading.

Bug 40061: Omit the Windows default browser agent from the build

Bug 40322: Consider disabling network.connectivity-service.enabled

Bug 40408: Disallow SVG Context Paint in all web content

Bug 40308: Disable network partitioning until we evaluate dFPI

Bug 40322: Consider disabling network.connectivity-service.enabled

Bug 40383: Disable dom.enable_event_timing

Bug 40423: Disable http/3

Bug 40177: Update prefs for Fx91esr

Bug 40700: Disable addons and features recommendations

Bug 40682: Disable network.proxy.allow_bypass

Bug 40736: Disable third-party cookies in PBM

Bug 19850: Enabled HTTPS-Only by default

Bug 40912: Hide the screenshot menu

Bug 41292: Disable moreFromMozilla in preferences page

Bug 40057: Ensure the CSS4 system colors are not a fingerprinting vector

Bug 24686: Set network.http.tailing.enabled to true

Bug 40183: Disable TLS ciphersuites using SHA-1

Bug 40783: Review 000-tor-browser.js and 001-base-profile.js for 102

We reviewed all the preferences we set for 102, and remove a few old
ones. See the description of that issue to see all the preferences we
believed were still valid for 102, and some brief description for the
reasons to keep them.

fixup! Firefox preference overrides.

Bug 42315: Drop dom.enable_event_timing.

It is already protected by RFP.

Bug 41043: Hardcode the UI font on Linux

The mechanism to choose the UI font does not play well with our
fontconfig configuration. As a result, the final criterion to choose
the font for the UI was its version.

Since we hardcode Arimo as a default sans-serif on preferences, we use
it also for the UI. FontConfig will fall back to some other font for
scripts Arimo does not cover as expected (we tested with Japanese).

Bug 41901: Hardcode normalized FontSubstitutes.

Windows has a system to set font aliases through the registry.
This allows some customization that could be used as a fingerprinting
vector.
Moreover, this mechanism is used by Windows itself, and different SKUs
might have different default FontSubstitutes.

Bug 30605: Honor privacy.spoof_english in Android

This checks `privacy.spoof_english` whenever `setLocales` is
called from Fenix side and sets `intl.accept_languages`
accordingly.

Bug 40198: Expose privacy.spoof_english pref in GeckoView

Bug 40199: Avoid using system locale for intl.accept_languages in GeckoView

Bug 40171: Make WebRequest and GeckoWebExecutor First-Party aware

Bug 26345: Hide tracking protection UI

Bug 9173: Change the default Firefox profile directory to be relative.

This commit makes Firefox look for the default profile directory in a
directory relative to the binary path.
The directory can be specified through the --with-relative-data-dir.
This is relative to the same directory as the firefox main binary for
Linux and Windows.

On macOS, we remove Contents/MacOS from it.
Or, in other words, the directory is relative to the application
bundle.

This behavior can be overriden at runtime, by placing a file called
system-install adjacent to the firefox main binary (also on macOS).

fixup! Bug 9173: Change the default Firefox profile directory to be relative.

Bug 42519: Disable portable mode also if is-packaged-app is present.

That is the file Firefox uses for .deb packages.

fixup! Bug 9173: Change the default Firefox profile directory to be relative.

Bug 42536: Fix !985 on macOS.

Bug 27604: Fix addon issues when moving the profile directory

Bugzilla: https://bugzilla.mozilla.org/show_bug.cgi?id=1429838

Bug 13028: Prevent potential proxy bypass cases.

It looks like these cases should only be invoked in the NSS command line
tools, and not the browser, but I decided to patch them anyway because there
literally is a maze of network function pointers being passed around, and it's
very hard to tell if some random code might not pass in the proper proxied
versions of the networking code here by accident.

Bugzilla: https://bugzilla.mozilla.org/show_bug.cgi?id=1433509

Bug 40309: Avoid using regional OS locales

Avoid regional OS locales if the pref
`intl.regional_prefs.use_os_locales` is false but RFP is enabled.

Bug 40432: Prevent probing installed applications

Bugzilla: https://bugzilla.mozilla.org/show_bug.cgi?id=1711084

Bug 33955: When copying an image only copy the image contents to the clipboard

Bug 41791: Omit the source URL when copying page contents to the clipboard

Bug 42288: Allow language spoofing in status messages.

Bug 41659: Add canonical color definitions to base-browser

Base Browser strings

This commit adds all the strings needed by following Base Browser
patches.

fixup! Base Browser strings

MB 288: Standardize capitalization in Letterboxing preferences

fixup! Base Browser strings

Bug 42537: Move base-browser.ftl to toolkit.

Bug 41369: Improve Firefox language settings for multi-lingual packages

Change the language selector to be sorted by language code, rather than
name, and to display the language code to the user.

Bug 41372: Handle Japanese as a special case in preferences on macOS

Japanese is treated in a special way on macOS. However, seeing the
Japanese language tag could be confusing for users, and moreover the
language name is not localized correctly like other langs.

Bug 41378: Tell users that they can change their language at the first start

With multi-lingual builds, Tor Browser matches the user's system
language, but some users might want to change it.
So, we tell them that it is possible, but only once.

Bug 41966: Allow removing locales from the locale alternatives list.

Bug 40283: Workaround for the file upload bug

Bug 18905: Hide unwanted items from help menu

Bug 25660: Remove the "New Private Window" option

Bug 41740: Change the RFP value of devicePixelRatio to 2

Bug 41739: Remove "Website appearance" from about:preferences.

It is ignored because of RFP and it is confusing for users.

Bug 41881: Don't persist custom network requests on private windows

Bug 42019: Empty browser's clipboard on browser shutdown

Bug 42084: Ensure English spoofing works even if preferences are set out of order.

Bug 42376: Pass the locale list when constructing l10n in datetimebox

The datetime input is inconsistent with other inputs when using spoof
English: its placeholder is not translated, unlike the default values
and texts of all the other inputs.

Bug 42397: Change RFP-spoofed TZ to Atlantic/Reykjavik.

Bug 42428: Make RFP spoof the timezone of document.lastModified.

Bug 42472: Spoof timezone in XSLT.

Bug 41434: Letterboxing, preemptively apply margins in a global CSS rule to mitigate race conditions on newly created windows and tabs.

Bug 41434: Letterboxing, improve logging.

Bug 31064: Letterboxing, exempt browser extensions.

Bug 32411: Letterboxing, exempt view-source: URIs.

Bug 32308: Use direct browser sizing for letterboxing.

Bug 30556: align letterboxing with 200x100 new win width stepping

Bug 41631: Prevent weird initial window dimensions caused by subpixel computations

fixup! Bug 41631: Prevent weird initial window dimensions caused by subpixel computations

Bug 42520: Correctly record new initial window size after auto-shrinking

Bug 41918: Option to reuse last window size when letterboxing is enabled.

fixup! Bug 41918: Option to reuse last window size when letterboxing is enabled.

Bug 42500: Fix restored window size after startup maximization

Bug 41916: Letterboxing preferences UI

Bug 41695: Warn on window maximization without letterboxing in RFPHelper module

Bug 42443: Shrink window to match letterboxing size when the emtpy area is clicked.

Bug 42528: Don't leak system scrollbar size on windows.

Bug 31575: Disable Firefox Home (Activity Stream)

Treat about:blank as the default home page and new tab page.

Avoid loading AboutNewTab in BrowserGlue.sys.mjs in order
to avoid several network requests that we do not need.

Bug 41624: Disable about:pocket-* pages.

Bug 40144: Redirect about:privatebrowsing to the user's home

Bug 4234: Use the Firefox Update Process for Base Browser.

Windows: disable "runas" code path in updater (15201).
Windows: avoid writing to the registry (16236).
Also includes fixes for tickets 13047, 13301, 13356, 13594, 15406,
  16014, 16909, 24476, and 25909.

Also fix bug 27221: purge the startup cache if the Base Browser
version changed (even if the Firefox version and build ID did
not change), e.g., after a minor Base Browser update.

Also fix 32616: Disable GetSecureOutputDirectoryPath() functionality.

Bug 26048: potentially confusing "restart to update" message

Within the update doorhanger, remove the misleading message that mentions
that windows will be restored after an update is applied, and replace the
"Restart and Restore" button label with an existing
"Restart to update Tor Browser" string.

Bug 28885: notify users that update is downloading

Add a "Downloading Base Browser update" item which appears in the
hamburger (app) menu while the update service is downloading a MAR
file. Before this change, the browser did not indicate to the user
that an update was in progress, which is especially confusing in
Tor Browser because downloads often take some time. If the user
clicks on the new menu item, the about dialog is opened to allow
the user to see download progress.

As part of this fix, the update service was changed to always show
update-related messages in the hamburger menu, even if the update
was started in the foreground via the about dialog or via the
"Check for Tor Browser Update" toolbar menu item. This change is
consistent with the Tor Browser goal of making sure users are
informed about the update process.

Removed #28885 parts of this patch which have been uplifted to Firefox.

fixup! Bug 4234: Use the Firefox Update Process for Base Browser.

Bug 42537: Move base-browser.ftl to toolkit.

Bug 42061: Create an alpha update channel.

Bug 41682: Add base-browser nightly mar signing key

Bug 41603: Customize the creation of MOZ_SOURCE_URL

MOZ_SOURCE_URL is created by combining MOZ_SOURCE_REPO and
MOZ_SOURCE_CHANGESET.
But the code takes for granted that it refers to a Hg instance, so it
combines them as `$MOZ_SOURCE_REPO/rev/$MOZ_SOURCE_CHANGESET`.
With this commit, we change this logic to combine them to create a URL
that is valid for GitLab.
$MOZ_SOURCE_CHANGESET needs to be a commit hash, not a branch or a tag.
If that is needed, we could use /-/tree/, instead of /-/commit/.

Bug 41698: Reword the recommendation badges in about:addons

Firefox strings use { -brand-product-name }.
As a result, it seems that the fork is recommending extensions, whereas
AMO curators are doing that.
So, we replace the strings with custom ones that clarify that Mozilla is
recommending them.

We assign the strings with JS because our translation backend does not
support Fluent attributes, yet, but once it does, we should switch to
them, instead.

Upstream bug: https://bugzilla.mozilla.org/show_bug.cgi?id=1825033

fixup! Bug 41698: Reword the recommendation badges in about:addons

Bug 42537: Move base-browser.ftl to toolkit.

Bug 42438: Tweaks to the migration wizard.

Remove the items not compatible with our features (such as history) from
the migration wizard.

On Linux, allow to specify an alternative home directory, since we
usually change $HOME in our startup script.

Bug 40069: Add helpers for message passing with extensions

Bug 41598: Prevent NoScript from being removed/disabled.

Bug 40253: Explicitly allow NoScript in Private Browsing mode.

Bug 41736: Hide NoScript extension's toolbar button by default.

This hides it from both the toolbar and the unified extensions panel.

We also hide the unified-extension-button if the panel would be empty:
not including the NoScript button when it is hidden. As a result, this
will be hidden by default until a user installs another extension (or
shows the NoScript button and unpins it).

Bug 41834: Hide "Can't Be Removed - learn more" menu line for uninstallable add-ons

Bug 40925: Implemented the Security Level component

This component adds a new Security Level toolbar button which visually
indicates the current global security level via icon (as defined by the
extensions.torbutton.security_slider pref), a drop-down hanger with a
short description of the current security level, and a new section in
the about:preferences#privacy page where users can change their current
security level. In addition, the hanger and the preferences page will
show a visual warning when the user has modified prefs associated with
the security level and provide a one-click 'Restore Defaults' button to
get the user back on recommended settings.

Bug 40125: Expose Security Level pref in GeckoView

Bug 40926: Implemented the New Identity feature

fixup! Bug 40926: Implemented the New Identity feature

Bug 42532: Use the HomePage module for new identity checks.

fixup! Bug 40926: Implemented the New Identity feature

Bug 42537: Move base-browser.ftl to toolkit.

Bug 41736: Customize toolbar for base-browser.

Bug 42027: Base Browser migration procedures.

This commit implmenents the the Base Browser's version of _migrateUI.

Bug 42308: Create README for tor-browser.

We drop the README.txt that comes from Mozilla Firefox and add README.md
for tor-browser.

Bug 41649: Create rebase and security backport gitlab issue templates

Add CI for Tor Browser

Bug 41089: Add tor-browser build scripts + Makefile to tor-browser

fixup! Bug 41089: Add tor-browser build scripts + Makefile to tor-browser

fix typo in new geckoview build scripts

Bug 41803: Add some developer tools for working on tor-browser.

fixup! Bug 41803: Add some developer tools for working on tor-browser.

Bug 42516: Make tb-dev worktree-compatible

Bug 11641: Disable remoting by default.

Unless the -osint command line flag is used, the browser now defaults
to the equivalent of -no-remote.  There is a new -allow-remote flag that
may be used to restore the original (Firefox-like) default behavior.

Add TorStrings module for localization

fixup! Add TorStrings module for localization

Load some torlauncher strings to show in about:torconnect in
TorStrings.sys.mjs.

We could move them to torConnect.properties, but maybe we are still in
time for moving all of them to Fluent, so I preferred reducing the
number of migrations.

Also, remove unused strings from torlauncher.properties.

fixup! Add TorStrings module for localization

Drop unused strings.
fixup! Add TorStrings module for localization

Bug 42221: Migrate downloads warning strings to Fluent.

fixup! Add TorStrings module for localization

Bug 42521: Drop unused onboarding strings.

fixup! Add TorStrings module for localization

Bug 42206: Migrate ruleset strings to Fluent.

fixup! Add TorStrings module for localization

Bug 41622: Move the onion net error strings to Fluent.

fixup! Add TorStrings module for localization

Bug 42549: Remove brand.dtd

Tor Browser strings

This commit adds all the strings needed for Tor Browser patches.

fixup! Tor Browser strings

Bug 42221: Migrate downloads warning strings to Fluent.

fixup! Tor Browser strings

Bug 42206: Migrate ruleset strings to Fluent.

fixup! Tor Browser strings

Bug 41622: Move net error page strings to Fluent.

fixup! Tor Browser strings

Bug 42457: Add a "testing" state to the internet status area.

fixup! Tor Browser strings

Bug 42537: Move tor-browser.ftl to toolkit.

fixup! Tor Browser strings

Bug 42545: Rename "onionsite" to "onion site" in Fluent.

Tor Browser localization migration scripts.

fixup! Tor Browser localization migration scripts.

Bug 42221: Migrate downloads warning strings to Fluent.

fixup! Tor Browser localization migration scripts.

Bug 42206: Migrate ruleset strings to Fluent.

fixup! Tor Browser localization migration scripts.

Bug 41622: Migrate onion net error strings to Fluent.

Bug 42305: Add script to combine translation files across versions.

Bug 2176: Rebrand Firefox to TorBrowser

See also Bugs #5194, #7187, #8115, #8219.

This patch does some basic renaming of Firefox to TorBrowser. The rest of the
branding is done by images and icons.

Also fix bug 27905.

Bug 25702: Update Tor Browser icon to follow design guidelines

- Updated all of the branding in /browser/branding/official with new 'stable'
icon series.
- Updated /extensions/onboarding/content/img/tor-watermark.png with new icon and
add the source svg in the same directory
- Copied /browser/branding/official over /browser/branding/nightly and the new
/browser/branding/alpha directories. Replaced content with 'nightly' and
'alpha' icon series.
Updated VisualElements_70.png and VisualElements_150.png with updated icons in
each branding directory (fixes #22654)
- Updated firefox.VisualElementsManfiest.xml with updated colors in each
branding directory
- Added firefox.svg to each branding directory from which all the other icons
are derived (apart from document.icns and document.ico)
- Added default256.png and default512.png icons
- Updated aboutTBUpdate.css to point to branding-aware icon128.png and removed
original icon
- Use the Tor Browser icon within devtools/client/themes/images/.

Bug 30631: Blurry Tor Browser icon on macOS app switcher

It would seem the png2icns tool does not generate correct icns files and
so on macOS the larger icons were missing resulting in blurry icons in
the OS chrome. Regenerated the padded icons in a macOS VM using
iconutil.

Bug 28196: preparations for using torbutton tor-browser-brand.ftl

A small change to Fluent FileSource class is required so that we
can register a new source without its supported locales being
counted as available locales for the browser.

Bug 31803: Replaced about:debugging logo with flat version

Bug 21724: Make Firefox and Tor Browser distinct macOS apps

When macOS opens a document or selects a default browser, it sometimes
uses the CFBundleSignature. Changing from the Firefox MOZB signature to
a different signature TORB allows macOS to distinguish between Firefox
and Tor Browser.

Bug 32092: Fix Tor Browser Support link in preferences

For bug 40562, we moved onionPattern* from bug 27476 to here, as
about:tor needs these files but it is included earlier.

Bug 41278: Create Tor Browser styled pdf logo similar to the vanilla Firefox one

Bug 42088: New application icons (used in-app and on linux).

Bug 42087: New application icons (windows).

fixup! Bug 2176: Rebrand Firefox to TorBrowser

Bug 41622: Add context-stroke to onion-warning.svg.

Also drop the unnecessary clip path.

fixup! Bug 2176: Rebrand Firefox to TorBrowser

bug 42504: Add tor project forums to bookmarks

fixup! Bug 2176: Rebrand Firefox to TorBrowser

Bug 42538: Move onion icons to toolkit.

fixup! Bug 2176: Rebrand Firefox to TorBrowser

Bug 42537: Move tor-browser.ftl to toolkit.

Bug 41917: Tor brand-specific styles.

Add purple tor version of the loading APNG.

Bug 40209: Implement Basic Crypto Safety

Adds a CryptoSafety actor which detects when you've copied a crypto
address from a HTTP webpage and shows a warning.

Closes #40209.

Bug 40428: Fix string attribute names

fixup! Bug 40209: Implement Basic Crypto Safety

Bug 42537: Move tor-browser.ftl to toolkit.

TB3: Tor Browser's official .mozconfigs.

Also:
Add an --enable-tor-browser-data-outside-app-dir configure option

Add --with-tor-browser-version configure option

Bug 31457: disable per-installation profiles

The dedicated profiles (per-installation) feature does not interact
well with our bundled profiles on Linux and Windows, and it also causes
multiple profiles to be created on macOS under TorBrowser-Data.

Bug 31935: Disable profile downgrade protection.

Since Tor Browser does not support more than one profile, disable
the prompt and associated code that offers to create one when a
version downgrade situation is detected.

Add --enable-tor-browser-update build option

Bug 40793: moved Tor configuration options from old-configure.in to moz.configure

Bug 41584: Move some configuration options to base-browser level

Bug 41340: Enable TOR_BROWSER_NIGHTLY_BUILD features for dev and nightly builds

tor-browser#41285: Enable fluent warnings.

Bug 40562: Added Tor Browser preferences to 000-tor-browser.js

Before reordering patches, we used to keep the Tor-related patches
(torbutton and tor-launcher) at the beginning.
After that issue, we decided to move them towards the end.

In addition to that, we have decided to move Tor Browser-only
preferences there, too, to make Base Browser-only fixups easier to
apply.

Bug 13252: Customize profile management on macOS

On macOS we allow both portable mode and system installation.
However, in the latter case, we customize Firefox's directories to
match the hierarchy we use for the portable mode.

Also, display an informative error message if the TorBrowser-Data
directory cannot be created due to an "access denied" or a
"read only volume" error.

Bug 40933: Add tor-launcher functionality

Bug 41926: Reimplement the control port

fixup! Bug 40933: Add tor-launcher functionality

Rename TorControlPort.sys.mjs's `TorError` to a less generic
`TorProtocolError`.

fixup! Bug 40933: Add tor-launcher functionality

Do not localize errors in TorProcess, but keep it only as a pure backend
file. Moreover, the localized errors would be only shown in the console.
Instead, report an error code to let them bubble up to the
TorProviderBuilder, where we show them in the "Restart Tor" prompt.

fixup! Bug 40933: Add tor-launcher functionality

Bug 42479: Remove localization from the backend files.

Also, use an Error object when the bootstrap fail, in preparation to the
removal of TorBootstrapRequest.

fixup! Bug 40933: Add tor-launcher functionality

This partially reverts commit 34f7e83335cde6653d897717741c9c8d41f858b7.

It removes the errorCode logic, and throws non-localized error
messages.

Also, it removes the no-longer used getFormattedLocalizedString.

fixup! Bug 40933: Add tor-launcher functionality

Changed a few calls to #stop since this method now expects an Erro
object.

Do not redefine topics, import them from TorProviderBuilder.sys.mjs.

Use lazy imports for our code.

fixup! Bug 40933: Add tor-launcher functionality

Bug 42541: Bridges without fingerprint break the circuit display.

The circuit display backend relies on GETCONF bridges because we want
to know the pluggable transport for the circuit display and, as far as
I can tell, no GETINFO command includes this information.

However, when we get a circuit from tor, we get its fingerprint, which
is optional on the bridge lines.
Therefore, in some cases we did not have the data to display, and we
just hid the circuit display button.

With this commit, when we miss the fingerprint of a bridge, we try to
get it in another way. It might produce incorrect results (we rely on
the IP address the user passes on the bridge line), but at least it
will show the circuit display.

Lox integration

fixup! Lox integration

Bug 42533: Add notification for when the activeLoxId changes.

fixup! Lox integration

Bug 42476: Drop unnecessary #window property.

fixup! Lox integration

Bug 42476: Disable the Lox module for the stable release.

fixup! Lox integration

Bug 42543: Demote the validateInvitation console message to "info".

Bug 40597: Implement TorSettings module

- migrated in-page settings read/write implementation from about:preferences#tor
  to the TorSettings module
- TorSettings initially loads settings from the tor daemon, and saves them to
  firefox prefs
- TorSettings notifies observers when a setting has changed; currently only
  QuickStart notification is implemented for parity with previous preference
  notify logic in about:torconnect and about:preferences#tor
- about:preferences#tor, and about:torconnect now read and write settings
  thorugh the TorSettings module
- all tor settings live in the torbrowser.settings.* preference branch
- removed unused pref modify permission for about:torconnect content page from
  AsyncPrefs.jsm

Bug 40645: Migrate Moat APIs to Moat.jsm module

fixup! Bug 40597: Implement TorSettings module

Move TorSettings and TorLauncherUtil to lazy imnports.
Also removed XPCOMUtils in favor of ChromeUtils.

fixup! Bug 40597: Implement TorSettings module

Bug 42479: Improve TorConnect error handling.

To do so, also remove localized error messages.
Use error codes, and let the frontend use the localized messages.

fixup! Bug 40597: Implement TorSettings module

Various fixes to address tor-browser!968.

fixup! Bug 40597: Implement TorSettings module

Remove an outdated comment.
Bug 3455: Add DomainIsolator, for isolating circuit by domain.

Add an XPCOM component that registers a ProtocolProxyChannelFilter
which sets the username/password for each web request according to
url bar domain.

Bug 9442: Add New Circuit button

Bug 13766: Set a 10 minute circuit dirty timeout for the catch-all circ.

Bug 19206: Include a 128 bit random tag as part of the domain isolator nonce.

Bug 19206: Clear out the domain isolator state on `New Identity`.

Bug 21201.2: Isolate by firstPartyDomain from OriginAttributes

Bug 21745: Fix handling of catch-all circuit

Bug 41741: Refactor the domain isolator and new circuit

Bug 41600: Add a tor circuit display panel.

Bug 42247: Android helpers for the TorProvider

GeckoView is missing some API we use on desktop for the integration
with the tor daemon, such as subprocess.
Therefore, we need to implement them in Java and plumb the data
back and forth between JS and Java.

fixup! Bug 42247: Android helpers for the TorProvider

Bug 42479: Improve TorConnect error handling.

Pass the new TorConnect error codes to Android.

fixup! Bug 42247: Android helpers for the TorProvider

TorConnectTopics.BootstrapError is now just Error, and it passes
directly the Error object.

Bug 8324: Prevent DNS proxy bypasses caused by Drag&Drop

Bug 41613: Skip Drang & Drop filtering for DNS-safe URLs

Orfox: Centralized proxy applied to AbstractCommunicator and BaseResources.

See Bug 1357997 for partial uplift.

Also:
Bug 28051 - Use our Orbot for proxying our connections

Bug 31144 - ESR68 Network Code Review

Bug 25741: TBA: Disable GeckoNetworkManager

The browser should not need information related to the network
interface or network state, tor should take care of that.

Bug 14631: Improve profile access error messages.

Instead of always reporting that the profile is locked, display specific
messages for "access denied" and "read-only file system".

To allow for localization, get profile-related error strings from Torbutton.
Use app display name ("Tor Browser") in profile-related error alerts.

Bug 40807: Added QRCode.js to toolkit/modules

Bug 31286: Implementation of bridge, proxy, and firewall settings in about:preferences#connection

This patch adds a new about:preferences#connection page which allows
modifying bridge, proxy, and firewall settings from within Tor Browser.
All of the functionality present in tor-launcher's Network
Configuration panel is present:

 - Setting built-in bridges
 - Requesting bridges from BridgeDB via moat
 - Using user-provided bridges
 - Configuring SOCKS4, SOCKS5, and HTTP/HTTPS proxies
 - Setting firewall ports
 - Viewing and Copying Tor's logs
 - The Networking Settings in General preferences has been removed

Bug 40774: Update about:preferences page to match new UI designs

fixup! Bug 31286: Implementation of bridge, proxy, and firewall settings in about:preferences#connection

Bug 42496: Fix the refresh captcha button's command.

fixup! Bug 31286: Implementation of bridge, proxy, and firewall settings in about:preferences#connection

Bug 40843: Add a "testing" state to the internet status.

Bug 41383: Improved accessibility of the network status areas by
managing focus and making the status an aria-live area so that changes
are announced without requiring focus.

Also re-arranged the markup to ensure the "Connection" overview and
network status areas are not part of search results.

Also moved the "Tor network" status onto a new line:

1. This improved navigation with a screen reader.
2. Ensures that the "Tor network" status does not jump horizontally
   during a test.
3. Ensures that each status area does not take up too much horizontal
   space so that the minimum page width can reduce. E.g. the "Tor
   network" area regularly took up more than 50% of the available width,
   and these may be wider depending on the locale.

fixup! Bug 31286: Implementation of bridge, proxy, and firewall settings in about:preferences#connection

Bug 42457: Add a loading icon for Lox invites.

Also reduce the amount of focus-jumping by keeping the focus on the
disabled button.

Also change the focus of the last provideBridgeDialog page to be the
table of bridges. NVDA did not announce the focus when it was set to the
dialog itself.

fixup! Bug 31286: Implementation of bridge, proxy, and firewall settings in about:preferences#connection

Bug 42533: Only update the internal loxId *after* the Lox.activeLoxId
has changed. In particular, we want to ensure that the data associated
with the new loxId (invites and event data) is set before we fetch them.

fixup! Bug 31286: Implementation of bridge, proxy, and firewall settings in about:preferences#connection

Bug 42476: Disable the Lox module for the stable release.

fixup! Bug 31286: Implementation of bridge, proxy, and firewall settings in about:preferences#connection

Bug 42537: Move tor-browser.ftl to toolkit.

fixup! Bug 31286: Implementation of bridge, proxy, and firewall settings in about:preferences#connection

Bug 42540: Fix gNetworkStatus.deinint typo

Bug 27476: Implement about:torconnect captive portal within Tor Browser

- implements new about:torconnect page as tor-launcher replacement
- adds new torconnect component to browser
- tor process management functionality remains implemented in tor-launcher through the TorProtocolService module
- adds warning/error box to about:preferences#tor when not connected to tor

Bug 40773: Update the about:torconnect frontend page to match additional UI flows.

Bug 41608: Add a toolbar status button and a urlbar "Connect" button.

fixup! Bug 27476: Implement about:torconnect captive portal within Tor Browser

Formatted comments.

fixup! Bug 27476: Implement about:torconnect captive portal within Tor Browser

Bug 42479: Improve TorConnect error handling.

Consume the new error codes and transform them into localized error
messages.

fixup! Bug 27476: Implement about:torconnect captive portal within Tor Browser

Various fixes to address tor-browser!968.

fixup! Bug 27476: Implement about:torconnect captive portal within Tor Browser

Fix the offline error handler.
Temporary changes to about:torconnect for Android.

We are planning of tempoorarily using about:torconnect on Android, until
the native UX is ready.

fixup! Temporary changes to about:torconnect for Android.

Bug 7494: Create local home page for TBB.

Bug 41333: Update about:tor to new design. Including:
+ make the favicon match the branding icon.
+ make the location bar show a search icon.

fixup! Bug 7494: Create local home page for TBB.

Bug 42537: Move tor-browser.ftl to toolkit.

Bug 12620: TorBrowser regression tests

Regression tests for Bug #2950: Make Permissions Manager memory-only

Regression tests for TB4: Tor Browser's Firefox preference overrides.

Note: many more functional tests could be made here

Regression tests for #2874: Block Components.interfaces from content

Bug 18923: Add a script to run all Tor Browser specific tests

Regression tests for Bug #16441: Suppress "Reset Tor Browser" prompt.

Bug 41668: Tweaks to the Base Browser updater for Tor Browser

This commit was once part of "Bug 4234: Use the Firefox Update Process
for Tor Browser.".
However, some parts of it were not needed for Base Browser and some
derivative browsers.
Therefore, we extracted from that commit the parts for Tor Browser
legacy, and we add them back to the patch set with this commit.

Bug 12647: Support symlinks in the updater.

Bug 19121: reinstate the update.xml hash check

This is a partial revert of commit f1241db6986e4b54473a1ed870f7584c75d51122.

Revert most changes from Mozilla Bug 862173 "don't verify mar file hash
when using mar signing to verify the mar file (lessens main thread I/O)."

We kept the addition to the AppConstants API in case other JS code
references it in the future.

Bug 16940: After update, load local change notes.

Add an about:tbupdate page that displays the first section from
TorBrowser/Docs/ChangeLog.txt and includes a link to the remote
post-update page (typically our blog entry for the release).

Always load about:tbupdate in a content process, but implement the
code that reads the file system (changelog) in the chrome process
for compatibility with future sandboxing efforts.

Also fix bug 29440. Now about:tbupdate is styled as a fairly simple
changelog page that is designed to be displayed via a link that is on
about:tor.

Bug 32658: Create a new MAR signing key

It's time for our rotation again: Move the backup key in the front
position and add a new backup key.

Bug 33803: Move our primary nightly MAR signing key to tor-browser

Bug 33803: Add a secondary nightly MAR signing key

Omnibox: Add DDG, Startpage, Disconnect, Youtube, Twitter; remove Amazon, eBay, bing

eBay and Amazon don't treat Tor users very well. Accounts often get locked and
payments reversed.

Also:
Bug 16322: Update DuckDuckGo search engine

We are replacing the clearnet URL with an onion service one (thanks to a
patch by a cypherpunk) and are removing the duplicated DDG search
engine. Duplicating DDG happend due to bug 1061736 where Mozilla
included DDG itself into Firefox. Interestingly, this caused breaking
the DDG search if JavaScript is disabled as the Mozilla engine, which
gets loaded earlier, does not use the html version of the search page.
Moreover, the Mozilla engine tracked where the users were searching from
by adding a respective parameter to the search query. We got rid of that
feature as well.

Also:
This fixes bug 20809: the DuckDuckGo team has changed its server-side
code in a way that lets users with JavaScript enabled use the default
landing page while those without JavaScript available get redirected
directly to the non-JS page. We adapt the search engine URLs
accordingly.

Also fixes bug 29798 by making sure we only specify the Google search
engine we actually ship an .xml file for.

Also regression tests.

squash! Omnibox: Add DDG, Startpage, Disconnect, Youtube, Twitter; remove Amazon, eBay, bing

Bug 40494: Update Startpage search provider

squash! Omnibox: Add DDG, Startpage, Disconnect, Youtube, Twitter; remove Amazon, eBay, bing

Bug 40438: Add Blockchair as a search engine

Bug 33342: Avoid disconnect search addon error after removal.

We removed the addon in #32767, but it was still being loaded
from addonStartup.json.lz4 and throwing an error on startup
because its resource: location is not available anymore.

Bug 40073: Disable remote Public Suffix List fetching

In https://bugzilla.mozilla.org/show_bug.cgi?id=1563246 Firefox implemented
fetching the Public Suffix List via RemoteSettings and replacing the default
one at runtime, which we do not want.

Bug 41906: Hide DNS over HTTPS preferences.

Bug 23247: Communicating security expectations for .onion

Encrypting pages hosted on Onion Services with SSL/TLS is redundant
(in terms of hiding content) as all traffic within the Tor network is
already fully encrypted.  Therefore, serving HTTP pages from an Onion
Service is more or less fine.

Prior to this patch, Tor Browser would mostly treat pages delivered
via Onion Services as well as pages delivered in the ordinary fashion
over the internet in the same way.  This created some inconsistencies
in behaviour and misinformation presented to the user relating to the
security of pages delivered via Onion Services:

 - HTTP Onion Service pages did not have any 'lock' icon indicating
   the site was secure
 - HTTP Onion Service pages would be marked as unencrypted in the Page
   Info screen
 - Mixed-mode content restrictions did not apply to HTTP Onion Service
   pages embedding Non-Onion HTTP content

This patch fixes the above issues, and also adds several new 'Onion'
icons to the mix to indicate all of the various permutations of Onion
Services hosted HTTP or HTTPS pages with HTTP or HTTPS content.

Strings for Onion Service Page Info page are pulled from Torbutton's
localization strings.

fixup! Bug 23247: Communicating security expectations for .onion

Bug 41622: Add context-stroke to onion-warning.svg.

fixup! Bug 23247: Communicating security expectations for .onion

Bug 42538: Move onion icons to toolkit.

Bug 30237: Add v3 onion services client authentication prompt

When Tor informs the browser that client authentication is needed,
temporarily load about:blank instead of about:neterror and prompt
for the user's key.

If a correctly formatted key is entered, use Tor's ONION_CLIENT_AUTH_ADD
control port command to add the key (via Torbutton's control port
module) and reload the page.

If the user cancels the prompt, display the standard about:neterror
"Unable to connect" page. This requires a small change to
browser/actors/NetErrorChild.jsm to account for the fact that the
docShell no longer has the failedChannel information. The failedChannel
is used to extract TLS-related error info, which is not applicable
in the case of a canceled .onion authentication prompt.

Add a leaveOpen option to PopupNotifications.show so we can display
error messages within the popup notification doorhanger without
closing the prompt.

Add support for onion services strings to the TorStrings module.

Add support for Tor extended SOCKS errors (Tor proposal 304) to the
socket transport and SOCKS layers. Improved display of all of these
errors will be implemented as part of bug 30025.

Also fixes bug 19757:
 Add a "Remember this key" checkbox to the client auth prompt.

 Add an "Onion Services Authentication" section within the
 about:preferences "Privacy & Security section" to allow
 viewing and removal of v3 onion client auth keys that have
 been stored on disk.

Also fixes bug 19251: use enhanced error pages for onion service errors.