[tbb-bugs] #27910 [Applications/Tor Browser]: Tor Browser 8.0.1 incorrectly opens with default screen.width 1000 and default screen.height 998

[Tor Bug Tracker & Wiki]

#27910: Tor Browser 8.0.1 incorrectly opens with default screen.width 1000 and
default screen.height 998
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 Reporter:  monmire                  |          Owner:  tbb-team
     Type:  defect                   |         Status:  new
 Priority:  High                     |      Component:  Applications/Tor
                                     |  Browser
  Version:                           |       Severity:  Normal
 Keywords:  tbb-fingerprinting-      |  Actual Points:
  resolution                         |
Parent ID:                           |         Points:
 Reviewer:                           |        Sponsor:
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 Platform: Tor Browser 8.0.1, macOS 10.10.5, desktop computer.

 My Tor Project FP Central: https://fpcentral.tbb.torproject.org/
 fingerprint report states the default screen size should be "either at
 1000x1000 or at a multiple of 200x100."

 This defect persistently recurs with each clean new Tor Browser 8.

 I first noticed this same defect in Tor Browser 8.0, and the same defect
 persists in Tor Browser 8.5a2.

 On the same macOS 10.10.5 desktop platform, Tor Browser 7.5.6 and earlier
 versions correctly opened with default screen.width 1000 and default
 screen.height 1000.

 My Tor Project FP Central fingerprint report included the following
 message:

 "Your Tor browser is not at the recommended size. It should be either at
 1000x1000 or at a multiple of 200x100. The easiest way to fix the
 resolution difference is to launch a new Tor identity and not change the
 size of the browser's window. The developer's console should also be
 closed since it has a direct impact on the reported screen dimensions. The
 only step required is to open the Onion menu on the left of the URL
 address bar and click on "New identity". You will clean your browser state
 and start from a fresh profile."

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/27910>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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