I don't think most people realize how huge Mozilla is. Their annual revenue has been flirting breaking a billion dollars for some time now and was ~$500 mil as of 2023 - primarily due to 'partnering' with Google, which was always a bellwether to anybody who cared to see it. Wikimedia has never broken $200 million per year. In other words, it's Mozilla that could buy Wikipedia, not the other way around.
But how much goes into firefox development? Maybe 2% of revenue like with Linux Fiundation and Linux kernel?
Mozilla is ads company, it does activism, outreach, it organizes Marxist conferences, management gets paid millions... Firefox development is just tiny fraction of what Mozilla does.
And frankly Wikipedia has the same overhead problem as Mozilla.
》 Mozilla isn’t just another tech company — we’re a global crew of activists, technologists and builders, all working to keep the internet free, open and accessible.
》 “Mozilla isn’t your typical tech brand; it’s a trailblazing, activist organization in both its mission and its approach,”
I do not doubt they employ 750 people. I am saying they have tons of other projects. If you go throught their blog posts, Firefox has tiny fraction of posts.