When you upload or input information through Firefox, you hereby grant us a nonexclusive, royalty-free, worldwide license to use that information to help you navigate, experience, and interact with online content as you indicate with your use of Firefox.
Also Firefox now has a Acceptable use policy https://www.mozilla.org/about/legal/acceptable-use/
The acceptable use policy is for Mozilla systems, such a pocket or ai tools, it doesn’t apply to Firefox (according to a Firefox forum response)
And that, right there, is why nobody fucking wants that shit in Firefox to begin with!