I think this approach is doomed. People only care about Mozilla because of Firefox and Firefox is falling behind again, no doubt coinciding with the mass layoffs and the ejection of the Servo engine. They've caught up with Chrome on most fronts a year or three ago when their reinvented CSS and layout engine was released, but they're still on the back foot these days.

This is incorrect. Firefox recently surpassed Chrome in a key benchmark and has generally been on a roll lately.

Yes, their current iterative improvements are not as sexy as the big release of Quantum, but to say they're currently falling behind is the opposite of the truth. They've just pulled ahead.