I am having trouble getting mplayer plugin to work. I keep getting message that plugin is missing. I have installed mplayer plugin etc.
I had this problem with the Flash plugin, every page I entered did’t showme the flash. So I downloaded the Flash YUM package from Adobe and installed it … it worked OK.
Can you install outside the Firefox Plugin installer the necesary plugin and test it again?
Thanks for your reply. I installed mplayer plugin via yast. I am using the pacman repository for multimedia.
Mplayer plugin is working but will not play AVI files. A bit strange because it does with firefox 2. Not over worried though as Konq/kaffeine plays them ok.
Good work man! I not installed any video codec for FFox3 yet! And now I will try just kaffeine plug in!
Finally you help me !!! 
Glad I am of some use 
To get media working I just used the 1-click for kde.