commit 122128797f57ee3d77dda4e6ebcca0645a079d30 Author: Mike Perry mikeperry-git@fscked.org Date: Fri Dec 16 20:40:26 2011 -0800

Describe new Firefox patches and update links. --- docs/design/design.xml | 50 +++++++++++++++++++++++++++++++++++++++--------- 1 file changed, 41 insertions(+), 9 deletions(-)

diff --git a/docs/design/design.xml b/docs/design/design.xml index f034fb5..27c8769 100644 --- a/docs/design/design.xml +++ b/docs/design/design.xml @@ -727,7 +727,7 @@ supported mime types for all currently installed plugins. <para> In addition, to prevent any unproxied activity by plugins at load time, we also patch the Firefox source code to <ulink -url="https://gitweb.torproject.org/torbrowser.git/blob/refs/heads/maint-2.2:/src/... the load of any plugins except +url="https://gitweb.torproject.org/torbrowser.git/blob/maint-2.2:/src/current-pat... the load of any plugins except for Flash and Gnash</ulink>.

</para> @@ -806,13 +806,13 @@ In addition, three Firefox patches are needed to prevent disk writes, even if Private Browsing Mode is enabled. We need to

<ulink -url="https://gitweb.torproject.org/torbrowser.git/blob/refs/heads/maint-2.2:/src/... +url="https://gitweb.torproject.org/torbrowser.git/blob/maint-2.2:/src/current-pat... the permissions manager from recording HTTPS STS state</ulink>, <ulink -url="https://gitweb.torproject.org/torbrowser.git/blob/refs/heads/maint-2.2:/src/... +url="https://gitweb.torproject.org/torbrowser.git/blob/maint-2.2:/src/current-pat... intermediate SSL certificates from being recorded</ulink>, and <ulink -url="https://gitweb.torproject.org/torbrowser.git/blob/refs/heads/maint-2.2:/src/... +url="https://gitweb.torproject.org/torbrowser.git/blob/maint-2.2:/src/current-pat... the content preferences service from recording site zoom</ulink>.

For more details on these patches, <link linkend="firefox-patches">see the @@ -930,7 +930,7 @@ security of the isolation</ulink> and to <ulink url="https://trac.torproject.org/projects/tor/ticket/3754">solve conflicts with OCSP relying the cacheKey property for reuse of POST requests</ulink>, we had to <ulink -url="https://gitweb.torproject.org/torbrowser.git/blob/refs/heads/maint-2.2:/src/... +url="https://gitweb.torproject.org/torbrowser.git/blob/maint-2.2:/src/current-pat... Firefox to provide a cacheDomain cache attribute</ulink>. We use the fully qualified url bar domain as input to this field.

@@ -967,7 +967,7 @@ url="https://developer.mozilla.org/en/Setting_HTTP_request_headers#Observers%22%3... observer</ulink> to remove the Authorization headers to prevent <ulink url="http://jeremiahgrossman.blogspot.com/2007/04/tracking-users-without-cookies.html">silent linkability between domains</ulink>. We also needed to <ulink -url="https://gitweb.torproject.org/torbrowser.git/blob/refs/heads/maint-2.2:/src/... +url="https://gitweb.torproject.org/torbrowser.git/blob/maint-2.2:/src/current-pat... Firefox to cause the headers to get added early enough</ulink> to allow the observer to modify it.

@@ -1263,7 +1263,7 @@ Firefox provides several options for controlling the browser user agent string which we leverage. We also set similar prefs for controlling the Accept-Language and Accept-Charset headers, which we spoof to English by default. Additionally, we <ulink -url="https://gitweb.torproject.org/torbrowser.git/blob/refs/heads/maint-2.2:/src/... +url="https://gitweb.torproject.org/torbrowser.git/blob/maint-2.2:/src/current-pat... content script access</ulink> to Components.interfaces, which <ulink url="http://pseudo-flaw.net/tor/torbutton/fingerprint-firefox.html">can be used</ulink> to fingerprint OS, platform, and Firefox minor version. </para> @@ -1464,8 +1464,7 @@ audio and video objects. <title>Description of Firefox Patches</title> <para> The set of patches we have against Firefox can be found in the <ulink -url="https://gitweb.torproject.org/torbrowser.git/tree/refs/heads/maint-2.2:/src/... -directory of the torbrowser git repository</ulink>. They are: +url="https://gitweb.torproject.org/torbrowser.git/tree/maint-2.2:/src/current-pat... directory of the torbrowser git repository</ulink>. They are: </para> <orderedlist> <listitem>Block Components.interfaces and Components.lookupMethod @@ -1566,6 +1565,39 @@ the profile directory as content prefs change (includes site-zoom and perhaps other site prefs?). </para> </listitem> + <listitem>Make Tor Browser exit when not launched from Vidalia + <para> + +It turns out that on Windows 7 and later systems, the Taskbar attempts to +automatically learn the most frequent apps used by the user, and it recognizes +Tor Browser as a seperate app from Vidalia. This can cause users to try to +launch Tor Brower without Vidalia or a Tor instance running. Worse, the Tor +Browser will automatically find their default Firefox profile, and properly +connect directly without using Tor. This patch is a simple hack to cause Tor +Browser to immediately exit in this case. + + </para> + </listitem> + <listitem>Disable SSL Session ID tracking + <para> + +This patch is a simple 1-line hack to prevent SSL connections from caching +(and then later transmitting) their Session IDs. There was no preference to +govern this behavior, so we had to hack it by altering the SSL new connection +defaults. + + </para> + </listitem> + <listitem>Provide an observer event to close persistent connections + <para> + +This patch creates an observer event in the HTTP connection manager to close +all keep-alive connections that still happen to be open. This event is emitted +by the <link linkend="new-identity">New Identity</link> button. + + </para> + </listitem> + </orderedlist> </sect2>