Earlier quoted context omitted.
Nobody uses Ladybird, at this point it's vaporware. And Thunderbird is still based on Firefox. The development of Firefox costs around $200 million per year. That's more than what Wikimedia can get from donations, and Wikipedia is a website that everyone uses. And you want to rely on donations from people that ad-block YouTube instead of paying for Premium. And let's say that it manages to bring those costs down to $…
If it costs $200 million a year to develop Firefox, then their management team is guilty of gross incompetence. I am betting this is really paying for the crappy side projects and HUGE pay for the Mozilla Foundation people (just like all the BS spending the Wikimedia foundation does) and has nothing to do with Firefox itself.
I think Mozilla Foundation receives something like 5 to 10%. I'm not against the argument that foundations can be bloated and inefficient, but at this point, this anti Mozilla narrative is completely out of control and almost purely speculation driven.