It is especially true for projects like Firefox which have access to massive funding since these attract the sort of people who consider those funds 'wasted' because they can be used to do so much for 'the common good'. Mitchell Baker - the utterly incompetent CEO - considered Firefox an afterthought because what the world needed was more NGO activism and what she needed was 400% more money for herself [1].
Wikipedia/Wikimedia is another example of a project with massive funding with similar problems even though the latter has a (not so) BDFL.
Wikimedia might be not perfect, but Wikipedia is still one of the most visited websites in the world and source of a lot of humanity knowledge in general.
Firefox on other hand is just something only nerds like us care about and only alive because Alphabet / Google is scared of antitrust legal action possibility.