GNOME Bugzilla – Bug 791517
Double click in firefox tab bar crashes firefox
Last modified: 2017-12-15 20:33:17 UTC
Related firefox bug: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=866089 I think that bug report described the behavior of this bug pretty well. Obviously firefox tries to call gdk_window_begin_move_drag while there's another drag ongoing. And this triggers an assertion failure. My hypothesis of what happened is that: firefox received two mouse click event. gdk_window_begin_move_drag is called in handler of both event, hence this crahes. The pointer grab in create_moveresize_window doesn't help because the second click arrived before the window is created (if my guess is correct). I'm opening a report here because I don't think there's much the firefox side can do.
Sorry, I meant to refer this bug report https://bugzilla.mozilla.org/show_bug.cgi?id=1186967
Isn't this a dupe of Bug 789054 already mentioned at the downstream report?
looks like it *** This bug has been marked as a duplicate of bug 789054 ***