Firefox update while running grizzle

[CorylusMaxima]

On Win 10 PCs I've often done this in the past and clicked the restart to update button.
Today 2 PCs successfully updated from v 123.0.1 to v 124.0.1
A third one just resulted in the error message 124.0.1’ is not compatible with miniVersion > = 124.0 maxVersion < = 124.0, and Firefox won't open at all.
Looks like I'll have to reinstall and copy over all the profile files from a backup, when all I wanted was a quick update.
Lesson learned - Close Firefox and reopen rather than try to restart - just in case. If that had been the prompt, at least I'd have known.
On googling the error message, I found someone complained about a similar thing with v120. Wouldn't ya think Mozilla would do something better by now.
Am I being unreasonable?

[king1]

you could try downloading the full installer and install over top of it, assuming one of the files didn't update correctly. FF is pretty good at picking up the old user profiles.

an option for next time is to use the Firefox Sync options then you could just reinstall and sign in...

[CorylusMaxima]

Thanks, that worked. That's another one I owe you - glad I asked on here first.

[king1]

all good ...