The conditions you describe sound like drag and drop crashes, which are most likely to be bug 2012230 or bug 2012100
** Summary changed: - Xorg crash when using Thunderbird and Firefox + gnome-shell crash when using Thunderbird and Firefox ** Package changed: ubuntu => gnome-shell (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-shell in Ubuntu. https://bugs.launchpad.net/bugs/2017431 Title: gnome-shell crash when using Thunderbird and Firefox To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/2017431/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs