Is that tab crashes or whole browser crash? YouTube on Firefox appear to trigger memory leaks of some sort. I get routine tab crashes for that reason too, but not as much browser crashes.
I've completely avoided Chrome/Edge in the browser wars. I went from Netscape to IE to Firefox and stayed there. I was using it before and after its notorious changes to WebExtensions API breaking many plugins in 2017.
I don't have any crashing issues with it.
I even remember the great "speed test" wars where pages like Lifehacker were measuring how long pages took to load and declared this or that browser the winner for that year.
That being said, the direction their privacy policy is going is concerning and giving me reason to eye alternatives. But from a technical standpoint it's solid on my end.
Increasingly it isn’t. It’s crashing 2 or 3 times a day for me now, and video conferencing is barely usable.