@jefmes Is the problem that donations don't cover the cost of maintaining Firefox, or is it that potential donors see Mozilla living high on the hog with plenty of Google funding, and direct their donations where they're needed more?
(fwiw, Mozilla's advertising plans are less well thought out than most proposals in this area. The fraud-promoting qualities of what they're working on now tend to create more, not fewer, privacy risks https://blog.zgp.org/why-turn-off-firefox-ad-tracking/ )