Somehow that whole Firefox affair is bugging me. Firefox is a free product, it doesn't come with anything, it costs nothing to buy or use - so exactly what righ

Somehow that whole Firefox affair is bugging me. Firefox is a free product, it doesn't come with anything, it costs nothing to buy or use - so exactly what right do people have to say that it should do or not do something (use Google search)? And yes, I realize that maybe there is some legal right or something or the sort because of the existence of the Mozilla Foundation, but nonetheless...