[tor-bugs] #12609 [Firefox Patch Issues]: HTML5 fullscreen API makes TB fingerprintable, disable it! (was: HTML5 fullscreen API makes TB screen size fingerprintable, disable it!)

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#12609: HTML5 fullscreen API makes TB fingerprintable, disable it!
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     Reporter:  cypherpunks           |      Owner:  mikeperry
         Type:  defect                |     Status:  new
     Priority:  critical              |  Milestone:
    Component:  Firefox Patch Issues  |    Version:
   Resolution:                        |   Keywords:  tbb-fingerprinting
Actual Points:                        |  Parent ID:
       Points:                        |
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Comment (by cypherpunks):

 More bad news: It's not only the screen size that is fingerprintable here,
 but also very probably the OS. Because what the attacker gets is the
 innerHeight/innerWidth - of a full screen window!

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/12609#comment:4>
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