[tbb-bugs] #16707 [Tor Browser]: Packaged fonts in Tor Browser make websites partly unreadable

[Tor Bug Tracker & Wiki]

#16707: Packaged fonts in Tor Browser make websites partly unreadable
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     Reporter:  gk       |      Owner:  tbb-team
         Type:  defect   |     Status:  needs_review
     Priority:  normal   |  Milestone:
    Component:  Tor      |    Version:
  Browser                |   Keywords:  tbb-usability, tbb-fingerprinting-
   Resolution:           |  fonts, TorBrowserTeam201509R
Actual Points:           |  Parent ID:
       Points:           |
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Comment (by arthuredelstein):

 Replying to [comment:5 gk]:
 > Why are you treating `ar` specially but not, say, `ja` or `ru` or any
 other locale?

 Arabic is a special case, where the most popular Arabic-supporting font
 that is sure to be enabled on OS X 10.5 and later is Arial. So it helps to
 make sure Arial is used if HTML specifies `lang=ar`.

 Apart from Arabic, for each language, one of two alternatives is true:
   1. Firefox already specifies in its default prefs one of the fonts we
 are bundling, or
   2. We only bundle one font that supports the language, and it is
 automatically chosen

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/16707#comment:6>
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