[tbb-bugs] #21444 [Applications/Tor Browser]: Webcam light flashes when I open NoScript menu

Tor Bug Tracker & Wiki blackhole at torproject.org
Fri Mar 3 01:30:18 UTC 2017

#21444: Webcam light flashes when I open NoScript menu
 Reporter:  ChatTor                   |          Owner:  tbb-team
     Type:  defect                    |         Status:  needs_information
 Priority:  Immediate                 |      Milestone:
Component:  Applications/Tor Browser  |        Version:
 Severity:  Critical                  |     Resolution:
 Keywords:                            |  Actual Points:
Parent ID:                            |         Points:
 Reviewer:                            |        Sponsor:

Comment (by ChatTor):

 Sorry for the delay, IRL can be busy. It doesn't seem to happen with
 Firefox 45.7, and my webcam is USB, so I don't need tape personally.

 It doesn't make much sense to me either, but, after playing with it more,
 it seems that the light flickers any time a menu resembling the right-
 click menu is drawn (Click the NoScript icon, click the HTTPS Anywhere
 icon, right-clicking, hovering over the NoScript option in the right-click
 menu), but not for fancy menus (like when you click the 3 lines to get
 into Firefox's settings  or when you click the gear icon in a new tab).
 Perhaps the bug is tied to the menu draw function of Firefox somehow? I'm
 not familiar with the source of Firefox, so I (unfortunately) can't be
 more helpful here.

 Also worth mentioning, I tried removing all add-ons and restarting the
 browser, and the light still flashes when I right-click and the right-
 click menu opens. This occurs both in the body of the browser as well as
 the address bar part of the browser, but not when I right-click the window
 title area drawn by X and get my system options for things such as "Move
 to desktop".

Ticket URL: <https://trac.torproject.org/projects/tor/ticket/21444#comment:7>
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