[tbb-bugs] #26599 [Applications/Tor Browser]: investigate CSS masks feature for fingerprinting potential

[Tor Bug Tracker & Wiki]

#26599: investigate CSS masks feature for fingerprinting potential
-------------------------------------+-------------------------------------
     Reporter:  mcs                  |      Owner:  tbb-team
         Type:  defect               |     Status:  new
     Priority:  Medium               |  Milestone:
    Component:  Applications/Tor     |    Version:
  Browser                            |   Keywords:  tbb-fingerprinting,
     Severity:  Normal               |  ff60-esr, TorBrowserTeam201807
Actual Points:                       |  Parent ID:
       Points:                       |   Reviewer:
      Sponsor:                       |
-------------------------------------+-------------------------------------
 Support for CSS masks was added in Firefox 53 and may represent a
 fingerprinting risk (e.g., if behavior is different for different
 platforms or GPUs).

 ​https://bugzilla.mozilla.org/show_bug.cgi?id=1251161
 ​https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_Masking

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/26599>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online