Earlier quoted context omitted.
> The answer is that all the money Mozilla Corp makes is reinvested back into Mozilla Corp (salaries etc). The Mozilla Foundation -- a non-profit which wholly owns Mozilla Corp -- is not funded by Mozilla Corp, but relies entirely on donations. Mozilla Foundations is responsible for philantropic education and awareness campaigns. Like...what? This answer and the one below from the Foundation employee don't actually g…
You could just go to their website (www.mozilla.org) and find out.
I was able to find information on the Ford-Mozilla Open Web Fellows program[1] and a list of events[2]. Funding for the first is obvious, for the second it seems like many of the events either aren't run by Mozilla, just recognized by them, or the funding isn't directly called out.
It would be great to see broken down what funding actually goes to. mozilla.org, as I said, seems to just be banking mostly on the Mozilla name (the phrase "Donate to Mozilla, the non-profit behind Firefox" doesn't exactly keep things clear). The donate page has no information on the subject, the Donate FAQ is a wiki page with no information on the subject.
As an example, the EFF has a great "Our Work" page[3], with a nice overview of a bunch of projects and big icons leading to really in-depth coverage of their work in each of six areas. The page also doubles as a nice portal into the subjects of interest themselves, if you want to know more.
[1] https://advocacy.mozilla.org/open-web-fellows/