Interesting.
The Mozilla Foundation has announced the creation of the Mozilla Corporation, a wholly-owned subsidiary that will continue the development, distribution and marketing of Mozilla Firefox and Mozilla Thunderbird. Unlike the non-profit Mozilla Foundation, the Mozilla Corporation will be a taxable entity (that is, a for-profit rather than a non-profit) but the Foundation is eager to emphasise that it will pursue the same public benefit goals as the Foundation itself and will not be driven purely by revenue goals….While the Mozilla Corporation will be a for-profit, the Mozilla Foundation is keen to stress that it is not selling out. The Mozilla Foundation will ultimately control the activities of the Mozilla Corporation and will retain its 100 percent ownership of the new subsidiary. 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.
I like the fact that they anticipated this question and tackled it head-on.