I haven't seen those kinds of numbers, but I agree they'd be good to have. I know that firefox makes a massive amount of money from Google (last I heard they made something like 400 million a year) and firefox was bringing in 90% of Mozilla's total income which means that the money firefox beings in isn't just going into firefox, but is holding up everything mozilla does. Even if a donation model was sufficient to support the browser, mozilla may not be happy about losing almost everything else they have going.

Looking around I find https://stateof.mozilla.org/ledger and https://assets.mozilla.net/annualreport/2024/mozilla-fdn-202... which might help answer some of those questions.

As for competing with chrome, I don't think they need to. Most people's only computer these days is an android phone and chrome is always going to be a first class citizen there. We saw the same thing with IE when windows was the operating system most people used.

It's perfectly fine for Chrome to be the default browser for the common people leaving firefox to be the preferred choice of the computer savvy. Firefox could slowly gain an audience as people start to become more aware of how chrome violates their privacy or as they seek relief from the worsening cesspool of ads chrome is encouraging the internet to become, but firefox never has to be number 1 or anywhere close to that in order to be successful and valued.