I haven't said this bc it seemed obvious but since I was snarky yesterday: My assumption is that Mozilla is real into AI (and not into most other things) right now is bc the potential remedies in the Google monopoly suit are an extremely serious existential risk and they're trying to operate where the money is (AI, for now) and maybe do some good—by someone's lights—to prep for that potential doom.
Remedies coming in about a year: https://archive.ph/j13bw
On Moz risk: https://news.itsfoss.com/google-mozilla-firefox-threat/