I don’t think this is a Firefox specific thing. When you do a Pacman upgrade you’re changing the files on disk. Any time those files need to be loaded in the fu

I don’t think this is a Firefox specific thing. When you do a Pacman upgrade you’re changing the files on disk. Any time those files need to be loaded in the future ought to trigger a warning from any program that doesn’t want to mysteriously break on you because it’s not loading what the previous version you still have in memory expected. The only real workaround for this is systems like NixOS where the previous version is left intact when you do updates.