Mozilla: AI is Going Deeper in Firefox, But Trust me Bro we Are Not Going to Data Mine You or Sell Your Data.
Mozilla: AI is Going Deeper in Firefox, But Trust me Bro we Are Not Going to Data Mine You or Sell Your Data.

Your data, your rules: Firefox’s privacy-first AI features you can trust | The Mozilla Blog

Translation is something the LLMs are pretty good at. It makes sense to use them for it, though obviously it should be a separate product and not part of Firefox.
The rest looks completely useless to me.