Okay, the responses here are kinda disappointing because folks here seem to be unaware that (1) Mozilla has already added "AI" info Firefox a few versions ago (to provide machine translations of pages), and (2) the way they did it is very responsible (the whole thing is 100% local, no info is sent to other servers).
I understand that we're all tired of this whole trend of language models being put where they don't belong, but from what I see, Mozilla is actually the company I'd trust the most to do it right. (AFAIK, one area where the FOSS world is severely lacking and where Mozilla works to solve it is speech recognition with the Common Voice project, and if they start working on an LLM-based program to do that, I'd welcome it.)