Firefox sees 100 millionth download

"Mozilla has seen steady adoption of its browser since its release last November. After a somewhat higher download rate immediately following its release, the browser has settled into between 200,000 and 300,000 downloads a day, said Asa Dotzler, the Mozilla liaison to the SpreadFirefox community. "

[Tech News on ZDNet]

Firefox's revs are over 30M+. And they started a unit recently around monetizing their services.