[tbb-bugs] #27546 [Applications/Tor Browser]: Vertical scrollbar is broken on Linux in Tor Browser 8 with Gtk3

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#27546: Vertical scrollbar is broken on Linux in Tor Browser 8 with Gtk3
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 Reporter:  gk                              |          Owner:  tbb-team
     Type:  defect                          |         Status:  new
 Priority:  Medium                          |      Milestone:
Component:  Applications/Tor Browser        |        Version:
 Severity:  Normal                          |     Resolution:
 Keywords:  tbb-8.0-issues, tbb-regression  |  Actual Points:
Parent ID:                                  |         Points:
 Reviewer:                                  |        Sponsor:
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Comment (by gapegas7uftp):

 Also experiencing this issue on Linux.  Expected behavior is
  left click = scroll 1 page up / down;
  middle-click = warp.
 Other GTK application on my system work this way, but not tor browser.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/27546#comment:1>
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