Firefox was in a pretty bad spot when I switched about 10 years ago. I would not have recommended to anyone who didn't have an excessive amount of RAM.
1. Better dev tools 2. Better WebGL performance
But today, Firefox has upped their game on both, and really, I don't play much with WebGL anymore so it doesn't matter that much to me.
I am kinda sick of this whole back-and-forth thing, though. I'm also getting tired of seeing the way the web is going; monetized and walled off. More and more, I'm starting to look into and toward distributed solutions.
Give me back the internet I remember from the early 90s. If I can't have that, then I might just return to BBS-ing over ssh...