There's plenty to improve. On Android there's the whole extension mess (and tons of other quality of life improvements), on desktop Firefox could use some proper PWA support (even Safari has that implemented well now), Spidermonkey is still the slowest mainstream Javascript engine out there, and Chrome's process sandboxing has some features that Firefox is yet to implement if at all. Firefox users on Gnome on Linux are a subset of a subset of a subset, that's hardly important, but "Firefox is slower than all the other browsers" is.
Mozilla cares more about their charity programs than they do about their browser (that's why you can't directly donate to Firefox, only to Mozilla). Maybe this acquisition is a way to add a new revenue stream, though I doubt it'll matter much because I've never seen AI detection that actually works. I hope this was a smart move, but I fear this will end up as one of those buttons everyone disables in the default toolbar, like Pocket has become.
Mozilla has also fired 250 people during the pandemic, so somehow coming up with the money to buy a company feels a little jarring when dev capacity still hasn't recovered.
