@Fransexy_
Doom or Quake weren't going to happen because the game publishers didn't want to consider it (while they were technically wrong in saying amigas could not run Doom, in practice it would have been total disaster, most systems were WAY too slow for Doom back then). Once the source code were released, porting was trivial. It's literally 1 weekend job, while something as complex as Firefox or OpenOffice takes years.
These things just don't compare, not even remotely. I will continue to claim Firefox/Mozilla will not happen.