Odd, I can't get it working in FC6 (Firefox 1.5.0.8) either. I had the same error message as the OP until I removed mplayerplug-in and installed realplayer10GOLD.bin. Now, the player just "sits there", and never loads a song. I disabled the adblock extension, but that didn't help. If you click on the 'help' button on the player, it provides instructions for Linux - what are we missing? Chris
