mplayerplug-in. kmplayer is just a KDE frontend for mplayer and accomplishes a lot of what mplayerplug-in does within the KDE environment. Whatever you can view in mplayer, you should be able to view in your browser with mplayerplug-in. Haven't tinkered with it much, but this is what folks will probably use with Mozilla to view streaming content on the 'net. Good luck.