this post was submitted on 17 May 2024
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I have been using Firefox as my only browser for many, many years now and I have never seen that message before.
it only appears on linux if you update your browser while it's running.
iirc existing tabs usually just keep working but you cannot reload or open new ones until a full browser restart.
Updating anything with stuff running is a bad idea. Yeah, yeah, I know all about the cases where this works, but I've spent too much time fixing it when it doesn't.
Good luck trying to update systemd
atomic updates 🧠
Same, but I've only recently started seeing it
You never update Firefox while using it?
If Firefox is using its own updater then it will notify that update is available and can even download it while it's running. But the updater doesn't normally apply the update (i.e. replace the program files on disk) until you restart Firefox so you can dismiss the update notification (not the one pictured in op) no worries.
But if some other updater mechanism such as package manager is handling the updates then you can run into issues if it's stupid enough to replace the files while Firefox is running.