Earlier quoted context omitted.
How do you think Firefox is making money, since it has no payed features? Hint: it has Google search as the default search engine.
That's my point... The fewer people use Firefox, the less money they get from Google. If you follow the money, it doesn't make sense for them to neglect Firefox.
This is not reflected in the numbers, at least from what I've found: 300m/year in 2011[1], 400+m/year in 2020[2], 485m/year in 2025[3].
[1] https://www.computerworld.com/article/1543269/google-to-pay-...
[2] https://www.pcmag.com/news/mozilla-signs-lucrative-3-year-go...
[3] https://nerdschalk.com/85-of-mozillas-revenue-at-risk-firefo...