Firefox is not for general users, which is the problem that Mozilla's for a literal decade now. There is no way to make it better than Chrome or Safari (because it has to be better for every day users to switch, not just "as good" or even "way more configurable but slightly worse". It has to be appreciably better).

So the only user base is the power user. And then yes: sane defaults, and a way to turn things on and off. And functionality that makes power users tell their power user friends to give FF a try again. Because if you can't even do that, Firefox firmly deserves (and right now, it does) it's "we don't even really rank" position in the browser market.

I find that hard to believe, every general/average user I have spoken to does not use AI for anything in their daily lives and have either not tried it at all or only played with it a bit a few years ago when it first came out.

The problem with integrating a chat bot is that what you are effectively doing is the same thing as adding a single bookmark, except now it's taking up extra space. There IS no advantage here, it's unnecessary bloat.