I don't know the legal details, but I think there are constraints on how much revenue a nonprofit can receive from non-donation sources. So back when the initi

I don't know the legal details, but I think there are constraints on how much revenue a nonprofit can receive from non-donation sources. So back when the initial search deal with Google was signed that created the initial funding stream for developing Firefox, the Foundation could not have signed it itself. Again, this is my best guess about an area way outside my expertise; you'd really want to talk to a lawyer specializing in this area for details.