if you want the full audio video codec support in the plugin, you will need to install the full VLC 1.0.5 with the activeX option enabled
Can you believe it, this is really a Theora Plugin its not flash,
the plugin should be working even on linux you just need to install
apt-get install mozilla-plugin-vlc make sure its 1.0.5 of vlc
so what you guys think pretty cool rightremember to remove the mplayer plugin in mozilla it creates issues with the vlc plugin