Great many tks! My frequent crashes happen when moving things around, so could indeed be the drag and drop bugs you list above.
This might be the crash https://errors.ubuntu.com/oops/004ef55e-e4de-11ed-a0eb-fa163e993415 Your suggested ubuntu-bug /var/crash/_usr_bin_gnome-shell.1000.crash does not get me an ID. -- 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