I understand the frustration. It's unlikely that the profile import lost one of the windows in such a reproducible manner, but just in case, can you try re-installing the firefox deb (if it was removed: `sudo apt install firefox`), run it after closing the snap (`/usr/bin/firefox`) and see if your main window is restored?
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1947257 Title: Partial profile loss on upgrade from 21.04 to 21.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1947257/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs