Firefox is under corporation, not foundation. Mozilla Corporation expenses are $400M+, not $100M.
https://en.wikipedia.org/wiki/Mozilla_Corporation#Finances
(I don't enough knowledge about freemium economics to figure out if the stated numbers would work out or not)
If we adjust to these numbers, we need to quadruple the number of paying users, up to some 1.2% of the total user base. Let's add a safety margin, and bump it to 2%.
Still does not look impossible to attain.
Firefox is under corporation, not foundation. Mozilla Corporation expenses are $400M+, not $100M.
https://en.wikipedia.org/wiki/Mozilla_Corporation#Finances
(I don't enough knowledge about freemium economics to figure out if the stated numbers would work out or not)