Before continuing, I want to specify that I’m agreeing with you but clarifying the situation because there is a business interest involved here.

The Mozilla Foundation is a non-profit with several wholly-owned, for-profit business subsidiaries, most notably the Mozilla Corporation. The Corporation markets and distributes several Mozilla products, including the Firefox browser, as well as its other commercial ventures like Pocket. The corporate subsidiaries’ profits do get returned to the owner of those businesses, which is the Foundation.