Mozilla first needs to regain the trust of its users. They aren't privacy-first at all, they run a lot of telemetry on their users. Have you ever checked the number of DNS queries and IP requests that go to Firefox servers every minute? If you haven't, I have, and it is a lot. They literally ping home every minute in the name of network connectivity and other things, if you believe it. I don't mind using Mozilla products, but I just don't trust their motives and data practices.
If you want privacy first AI in the browser here are the tools
If you want privacy first AI in the browser here are the tools
https://ollama.com
https://github.com/n4ze3m/page-assist