@RealNC: The only hypocrite here is you saying that Mozilla is somehow limiting your freedom by not supporting a patent-encumbered codec in a free implementation of an open standard. You seem to have some very skewed perspective of the world.
Once more, if you want to use plugins for video you can do that already. It's called flash. You can also use Chrome or - if you can't live without Firefox - you can fork that too and provide your own video implementation.