[tor-bugs] #27196 [Applications/Tor Browser]: TB 8a10 and panopticlick: your browser has a unique fingerprint

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#27196: TB 8a10 and panopticlick: your browser has a unique fingerprint
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 Reporter:  traumschule                          |          Owner:  erinn
     Type:  defect                               |         Status:  closed
 Priority:  Medium                               |      Milestone:
Component:  Applications/Tor Browser             |        Version:
 Severity:  Normal                               |     Resolution:
 Keywords:  ff60-esr, tbb-usability tbb-         |  worksforme
  security, tbb-performance                      |  Actual Points:
Parent ID:                                       |         Points:
 Reviewer:                                       |        Sponsor:
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Comment (by traumschule):

 > Re your screen size: do you get that with a clean, new 8.0a10 without
 any modifications? You should have a config rounded to a multiple of
 200x100.

 > What is going on with your browser window size? It doesn't appear to be
 normal. You can test as well here:
 ​https://fpcentral.tbb.torproject.org/fp Because that's the only thing
 that leaks much entropy in your side (here's hoping tbb devs will actually
 fix the user agent as well to not leak OS for most sites and most
 trackers).

 On i3 new windows are maximized, one needs to alt+shift+space them to
 window mode (or use [https://faq.i3wm.org/question/136/size-of-new-
 windows.1.html other] [https://faq.i3wm.org/question/1177/set-window-to-
 fixed-percentage-size.1.html means]), now it's at 1000x700x24.
 maximized: https://share.riseup.net/#MHCMLo2EsW25uIvO06JRvA
 windowed: https://share.riseup.net/#NQZiSG3GIGbgmEgIliSltw
 The security slider has no effect at this point. Also i wonder why TB does
 not show a warning when maximized, it did that ago.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/27196#comment:4>
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