Firefox not playing videos

Generally I save videos to watch them but some sites insist on watching videos in a webpage. For some reason my firefox can't play them. It says its missing a plugin. When I click to download it it says it can't find one. So what plugin am I missing? It wont play any media in a window I don't think. I am using media player classic and real alternatives for quicktime and real.

You're missing some plugins, browse FF's plugins for quicktime, imbedded WMP, and other plugins that might be the problem. I've had this problem with WMP imbedded into sites and downloaded some plugins and it works.

As for the trolls, they're just mad they can't fix a simple problem so they find the easiest way out and switch from a good browser to a suckass one. ;o