[tbb-bugs] #22137 [Applications/Tor Browser]: Provide the same scrollbar size across different platforms

[Tor Bug Tracker & Wiki]

#22137: Provide the same scrollbar size across different platforms
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     Reporter:  gk                        |      Owner:  tbb-team
         Type:  defect                    |     Status:  new
     Priority:  High                      |  Milestone:
    Component:  Applications/Tor Browser  |    Version:
     Severity:  Major                     |   Keywords:  tbb-fingerprinting
Actual Points:                            |  Parent ID:
       Points:                            |   Reviewer:
      Sponsor:                            |
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 Scrollbar sizes are different on different platforms. But it seems that
 there are ways to split the Linux users into different buckets based on
 that: On a Debian Stretch system with XFCE I get 15px thickness on an
 Ubuntu 14.04 system with GNOME I get 13px thickness.

 A test can be found on
 http://www.hackerfactor.com/blog/index.php?/archives/761-Exploiting-the-
 TOR-Browser.html.

 One option mentioned in that blog post would be to provide 17px on all
 platforms.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/22137>
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