The TOS debacle last spring was a warning flag as to Mozilla's future direction, and I started checking out some of the projects that build browsers on top of the current Firefox codebase. My top three: Librewolf focuses on privacy, Waterfox clears out the cruft, and Zen tries to create a "calm" internet experience similar to Arc.
Interestingly, all three of them have made statements about in-browser "AI" in the last couple of days:
we haven't and won't support "generative AI" related stuff in LibreWolf.
Zen currently is disabling all AI features included in Firefox and will continue to do so.
Waterfox's stance on AI in the browser
And I wasn't even looking for those statements!