[tor-bugs] #21962 [Applications/Tor Browser]: Segmentation fault with "high" security when changing in about:addons to "Extensions" or "Appearance"

[Tor Bug Tracker & Wiki]

#21962: Segmentation fault with "high" security when changing in about:addons to
"Extensions" or "Appearance"
------------------------------------------+----------------------
     Reporter:  viktorj                   |      Owner:  tbb-team
         Type:  defect                    |     Status:  new
     Priority:  Medium                    |  Milestone:
    Component:  Applications/Tor Browser  |    Version:
     Severity:  Normal                    |   Keywords:
Actual Points:                            |  Parent ID:
       Points:                            |   Reviewer:
      Sponsor:                            |
------------------------------------------+----------------------
 Tor-Browser version: 7.0a3-build4, 64 bit Linux

 The segmentation fault is maybe only the most annoying part of the
 underlying issue. If the security level is set to "High" and after a
 restart of Tor Browser, opening about:addons and trying to change to the
 "Extensions" or "Appearance" panel leads to a segmentation fault.

 Other effects of setting the security level to "High" which may be related
 or may help you finding the root cause:
 (after closing and restarting)
 - the symbols in front of the panel descritions in about:preferences are
 not visible
 - the checkboxes in about:preferences don't show a check mark or a dot if
 they are selected

 Unfortunately I don't know how to debug this, but I hope you can reproduce
 this easily.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/21962>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online