Please use Firefox!
Even if it's worse. Even if its slower[1]. Even if it doesn't have that one feature or bug fix that you personally consider really important. Just use Firefox anyway. Find a workaround. Suffer whatever it is you dislike about Firefox because in the end if we don't act as individuals against the chrome monopoly then google are going to own the web and we'll suffer a far worse period of monoculture than the IE6 ever was.
If you can't go all the way, going part of the way is still valuable. I personally have chrome installed still because there are a couple if internal sites at my work that have problems on Firefox, so I use Chrome for those but Firefox for everything else.
Firefox for Android is also solid browser, and as a bonus you don't see any AMP stuff.
If you're a website/app maintainer, check for compatibility in Firefox.
It's worth supporting Firefox to keep the web the way it should be. I know they make mistakes sometimes, but we need a viable alternative or it will be too late.
([1] I don't think it is, it's made soild improvements in recent years, but lots of people seem to have their own specific issue they hold dear against it)