Mozilla the _Foundation_ is the recipient of donations, why can't the developer teams work under the foundation directly, as they would for an NGO? Maybe my ignorance but I assume that is more or less the model of the Linux Foundation?
"Unlike the Mozilla Foundation, the Mozilla Corporation is a tax-paying entity, which gives it much greater freedom in the revenue and business activities it can pursue. From 2004 to 2014, the majority of revenue came from a deal with Google, which was the default search engine in the Firefox web browser."
[1] https://en.wikipedia.org/wiki/Mozilla_Foundation?wprov=sfla1
With the risk of sounding cynical that sounds like business talk for "we need a corporation so that ...we can do things". Again why is it that they are unable to develop Firefox under a Foundation structure?
Why could they have not done the deal with google via the foundation? If it is a tax aspect why could they have not created a corporation just to handle the financial deal without all the overhead structure of execs and board C-levels?