I can't speak to the experiences of chapium, but my issue with Firefox is that I always experience a slowdown of some sort after it's been open and in use for a few hours. I have to go into about:profiles and "restart normally" to make it go away for another few hours. I never had this problem with Chrome. I'm on my third or fourth attempt to switch to Firefox in the last year and it's still happening. I'm tempted to switch back to Chrome, but I really, really don't want to.
It's not my computer either - my work PC, at least, is a powerhouse.
Also, I find Chrome's dev tools to be marginally better - but I'm not sure if that's just my familiarity with them over Firefox's.
Quick edit: there are some other problems I have with Firefox, but they're all relatively minor and don't bother me nearly as much as the random slowdowns and short freezes.
I always seem to run into performance hitches or glitchy behavior. Both Chrome and Firefox use very aggressive prefetching, but I find that the UI response time feels better in Chrome. Edge (the chromie version) is my go to for stay out of my way browsing.
It's not my computer either - my work PC, at least, is a powerhouse.
Also, I find Chrome's dev tools to be marginally better - but I'm not sure if that's just my familiarity with them over Firefox's.
Quick edit: there are some other problems I have with Firefox, but they're all relatively minor and don't bother me nearly as much as the random slowdowns and short freezes.