I don't understand your ranting about mozzila. In the wiki page you posted right there :

Any profits made by the Mozilla Corporation will be invested back into the Mozilla project. There will be no shareholders, no stock options will be issued and no dividends will be paid

Where is the profit on the page? The revenue isn't profit, it's how much money they make without the costs.

Then how do you expect a browser to survive without revenue? There are 3 major browser engines on the market today :

• chromium (backed up by Google, sucking big money)
• blink (baked up by apple, with big money too)
• Gecko (I think) for Firefox. And it also needs lots of funding.

Al of them suck up huge amount of money.

For revenue, they also have more products than Firefox https://en.m.wikipedia.org/wiki/List_of_Mozilla_products which also make money or not.