I've installed mplayer and am able to play back online vidoes like quicktime. However, I get no sound.
Playing the same file retrieved from browser cache, directly with mplayer, works with sound. What do I need to do with firefox to get the sound of videos? I have the gecko-media player installed but I noticed in firefox options/applications that *.mov files are not mentioned there. Although quite a few other formats are listed as using gecko.
