[buzer]

> The whole Mozilla foundation budget oscillated around $100-120M/y for last few years.

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)

[nine_k]

Thank you for the correction!

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.