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Re: [tor-bugs] #11194 [Tor bundles/installation]: Tor Browser detected screen size is different than Firefox

#11194: Tor Browser detected screen size is different than Firefox
-------------------------------------+-------------------------------------
     Reporter:  joebt                |      Owner:  erinn
         Type:  defect               |     Status:  closed
     Priority:  major                |  Milestone:
    Component:  Tor                  |    Version:
  bundles/installation               |   Keywords:  Tor Browser, screen
   Resolution:  duplicate            |  size
Actual Points:                       |  Parent ID:
       Points:                       |
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Comment (by joebt):

 In context of this issue, what's the definition / implication of the
 category "Project?"

 The reason I filed it here (right or wrong), is because many would
 consider this a bug, not something we'll get around to if we ever get
 caught up.  Maybe I misunderstand the meaning of "project."

 When I visit panopticlick w/ TBB 3.5.2, due to the odd screen size
 (specifically, the '''height - of 982''' or similar), it shows 1 browser
 in 10's or 100's of thousands has that value (pretty unique).

 At the __same time__ in regular Fx (same default theme, same toolbars,
 etc.), it detects 1920 x 1080 screen size (if Windows system is set @ 96
 DPI). Panopticlick shows 1 browser in 46 have that screen size (quite
 common).  That difference alone suggests this is a real TBB bug.

 If I want to anonymously release some "important" data to the media, how
 much easier is it to start looking for a (Tor) browser w/ screen size 1 in
 100's of thousands vs. 1 in 40 or 50?  To ask my very large ISP, "give us
 a list of users that accessed Tor relays last Fri between 9:00 & 9:05"
 (the approx. time a TBB user w/ the really odd screen size accessed a
 particular site from a specific Tor exit).

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/11194#comment:2>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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