I experience this bug under Wayland in Pop!_OS 21.04, which uses a custom fork of Dash to Dock (Cosmic Dock).[*]
I found a clunky workaround: * Select File -> Send Later (ctl-shift-enter): message is saved to Outbox. * Select File -> Send Unsent Messages. This method does not create a "ghost window". But it's nearly as annoying as the bug itself. I had to remove the "Send" button from the Composition toolbar to keep me from reflexively clicking it. (I should really just switch TB to run under Xwayland, but I'm pigheaded.) [*] https://github.com/pop-os/cosmic-dock -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to 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/thunderbird/+bug/1932328/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
