[tor-bugs] #13313 [Tor Browser]: Enable bundled fonts in Tor Browser

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#13313: Enable bundled fonts in Tor Browser
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     Reporter:  dcf          |      Owner:  tbb-team
         Type:  enhancement  |     Status:  new
     Priority:  normal       |  Milestone:
    Component:  Tor Browser  |    Version:
   Resolution:               |   Keywords:  tbb-fingerprinting-fonts
Actual Points:               |  Parent ID:
       Points:               |
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Comment (by dcf):

 Replying to [comment:12 arthuredelstein]:
 > Replying to [comment:11 dcf]:
 > > I got some advice from Firefox maintainers. One suggests that the best
 way to do the job is to put code in gfxPlatformFontList that filters the
 system font list (based on file name; we check that the names are within
 the whitelisted bundle directory). Another says that in order to disable
 system fallback, one should set the pref
 gfx.font_rendering.fallback.always_use_cmaps to true, which will cause the
 renderer to explicitly iterate through the list of known fonts.
 >
 > Hi David -- I'm having a look at your work. Is the branch here your
 latest version? ​https://gitweb.torproject.org/user/dcf/tor-browser-
 bundle.git/log/?h=fonts

 Yes, it's that branch plus this tor-browser.git patch:
  * attachment:4.5-alpha-2-fonts-1.patch
 The patch only covers DirectWrite for Windows, and resulted in the weird
 graphical effects in comment:3. In order to use it, you may have to set
 the pref
   gfx.font_rendering.directwrite.enabled=true

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/13313#comment:13>
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