[tbb-bugs] #27083 [Applications/Tor Browser]: TBA: Window size rounding isn't used

Tor Bug Tracker & Wiki blackhole at torproject.org
Wed Aug 8 15:29:00 UTC 2018

#27083: TBA: Window size rounding isn't used
 Reporter:  sysrqb                            |          Owner:  tbb-team
     Type:  defect                            |         Status:  new
 Priority:  Very High                         |      Milestone:
Component:  Applications/Tor Browser          |        Version:
 Severity:  Normal                            |     Resolution:
 Keywords:  tbb-mobile, TorBrowserTeam201808  |  Actual Points:
Parent ID:  #25703                            |         Points:
 Reviewer:                                    |        Sponsor:

Comment (by sysrqb):

 Replying to [comment:1 igt0]:
 > How will this bug will affect the sites UX? Specially when they are
 using CSS media queries.

 I'm not sure. Currently, when I visit https://whatismybrowser.com using
 TBA it shows something like:
 Computer Screen: `412x609`
 Browser Window Size: `412x609` or `412x670` (depending on whether the
 toolbar is showing or not (Full-screen browsing)).

 I suspect these screen sizes can fingerprint specific devices (but I
 haven't tested many other phones or tablets).

Ticket URL: <https://trac.torproject.org/projects/tor/ticket/27083#comment:2>
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