I can still confirm bug. Fully updated Ubuntu 20.10 - thunderbird 1:91.3.1+build1-0ubuntu0.21.10.2 - mutter 40.5-1ubuntu3~21.10.1
But after commenting "export MOZ_ENABLE_WAYLAND=1" like suggested in comment #18 problem stops. All is working fine now. -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to mutter in Ubuntu. https://bugs.launchpad.net/bugs/1932328 Title: Thunderbird under Wayland does not correctly close (or manage) windows To manage notifications about this bug go to: https://bugs.launchpad.net/gnome-shell/+bug/1932328/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
