I’ll say that for a period of time, Chrome was the more performant browser because Firefox was more demanding. Especially considering I was using an ancient PC. Nowadays I don’t know about performance, but I like to use Firefox at home and at work. There are a few issues, but I switch to chrome for them

My only gripe is that I wish Firefox had tab grouping. It’s hard for me to keep things straight while I have 20+ tabs open. But it’s worth the inconvenience to help support a competitor to Chromium