Thank you for adding extra details. I still don't see how you have met the requirements for the cinnamon desktop to remain in your case.
The dep rules for your release can be see at https://packages.ubuntu.com/hirsute/cinnamon-desktop-environment meaning you need either - firefox-esr ; Package not available - or firefox ; Safe and easy web browser from Mozilla - or chromium ; Package not available - or gnome-www-browser ; virtual package provided by chromium-browser, epiphany-browser, firefox As your system had none of those, the removal of cinnamon needed to be performed, which was done; it worked as designed. (ie. your package-list contained none of those dependencies/requirements) ** Changed in: cinnamon-desktop-environment (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1931698 Title: Can't uninstall firefox. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cinnamon-desktop-environment/+bug/1931698/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
