I just switched yesterday after learning more about why I should here in Lemmy.
The last time I tried FF (many years ago) it was incredibly slow, so I went with chrome. But the FF of today is actually noticably quicker.
Also, FF offered to import all of my bookmarks, autofills, passwords, history, and even my extensions (if a FF version exists of course, almost all of which did) and did so seamlessly. It was the easiest software switch ever.