[tor-bugs] #10095 [TorBrowserButton]: Setting screen resolution to a multiple of 200 x 100 is not working reliably with overlaid toolbar buttons

[Tor Bug Tracker & Wiki]

#10095: Setting screen resolution to a multiple of 200 x 100 is not working
reliably with overlaid toolbar buttons
-------------------------+-------------------------------------------------
     Reporter:  gk       |      Owner:  mikeperry
         Type:  defect   |     Status:  closed
     Priority:           |  Milestone:
  critical               |    Version:
    Component:           |   Keywords:  tbb-fingerprinting, tbb-testcase,
  TorBrowserButton       |  MikePerry201401R
   Resolution:  fixed    |  Parent ID:
Actual Points:           |
       Points:           |
-------------------------+-------------------------------------------------

Comment (by cypherpunks):

 Replying to [comment:37 cypherpunks]:
 > A few weeks after it's integrated in both TBB and Tails, I'll run
 Panopticlick scrape no. 2, and then another few weeks later scrape no. 3,
 then subtract 2 from 3 to get some data on how the situation has
 (hopefully) improved.

 Okay, two scrapes on 2014-03-02 and 2014-03-12, looking again at Tor-
 Browser-ish requests with screens between 1000x400x24 and 1000x1400x24.

 Good news: '''83% of that period's requests were rounded to 100px! '''
 (before: 45%)

 ||screen||requests||
 ||1000x600x24||103||
 ||1000x900x24||59||
 ||1000x700x24||30||
 ||1000x800x24||16||
 ||1000x1000x24||14||
 ||1000x400x24||7||
 ||1000x777x24||4||
 ||1000x878x24||3||
 ||1000x822x24||3||
 ||1000x792x24||2||
 ||1000x711x24||2||
 ||1000x611x24||2||
 ||1000x500x24||2||
 ||1000x687x24||1||
 ||1000x866x24||1||
 ||1000x783x24||1||
 ||1000x877x24||1||
 ||1000x738x24||1||
 ||1000x879x24||1||
 ||1000x702x24||1||
 ||1000x891x24||1||
 ||1000x697x24||1||
 ||1000x691x24||1||
 ||1000x808x24||1||
 ||1000x679x24||1||
 ||1000x1025x24||1||
 ||1000x643x24||1||
 ||1000x635x24||1||
 ||1000x895x24||1||
 ||1000x602x24||1||
 ||1000x938x24||1||
 ||1000x599x24||1||
 ||1000x594x24||1||
 ||1000x589x24||1||
 ||1000x584x24||1||
 ||1000x1035x24||1||
 ||1000x579x24||1||
 ||1000x578x24||1||
 ||1000x577x24||1||
 ||1000x543x24||1||
 ||1000x978x24||1||
 ||1000x992x24||1||
 ||1000x1400x24||1||
 ||1000x1238x24||1||
 ||1000x1044x24||1||
 ||1000x1223x24||1||
 ||1000x1173x24||1||

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/10095#comment:41>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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