There was a time i couldn't imagine moving away from chromium... all the FF people shout about features, I care not, I want a browser that is good at the fundamentals, has a non intrusive UI and allows me to block ads, that wasn't FF, i should know I've submitted my fair pile of FF bugs, and stumbled across a decent amount of decade old ones.

However these days I find myself using FF more and more for those very reasons, where chromium/chrome is failing more and more. The other side of this is of course that FF has been improving massively in recent years.

There is no best, browsers are ridiculously complicated and hard, but i suppose there are phases, if chromium team loose sight of how non-obscure the requirement to block ads easily is to all users today, this may be the start of a different phase.