I know a lot of the current issues are about ideology and privacy. Mozilla seemingly pivoting away from fighting for privacy and into AI, supposedly most recently including integration with remote AI, including Google's, while not implementing the top feature requests... I'm personally sticking with Firefox for now, but it does make me wary.

i dont know if it's just me but since i updated firefox in february this year, if i close firefox with a tabs open, the tabs are gone too. i cant find the settings on it but in iceraven