Not sure why this is downvoted. Mitchell has been a disaster for Mozilla (her only accomplishment is squeezing more money out of Google for the search deal despite an ever dwindling user base for FF - we measure DAU and MAU and the hemorrhaging hasn’t stopped).
Very few people in the org actually work on FF. It’s increasingly other bets that don’t pan out or weird acquisitions: Hubs, Pocket, FakeSpot, VPN, Relay, now Monitor. Eventually these lose enough money and they’ll cut them. Then inevitably Mitchell will run a surplus in the budget by cutting projects early and squeezing more money out of Google, funnel the money back to the Mozilla foundation which she also chairs, and then doll it out to her pet political projects.