Online videos (mpeg and some wmv files) were not playing in Firefox under Ubuntu Edgy in my laptop. I checked and I had mplayer for Firefox installed. I also had installed totem for Firefox and VLC media player plugin for Firefox. I found that out when I entered about:plugins in Firefox. I then uninstalled the VLC plugins and then uninstalled the totem plugin from the terminal using the following command:
sudo apt-get remove totem-mozilla (it used to be gstreamer in Dapper, I think).
I then reinstalled mplayer plugin for Mozilla and it worked. If you don’t want to uninstall totem plugin, you can try this in a terminal:
sudo -s (to login as root)
cd /usr/lib/mozilla-firefox/plugins
mkdir oldtotemfiles
mv libtotem* oldtotemfiles (move to totem plugins)
apt-get install –reinstall mozilla-mplayer
exit
exit
This should get mplayer to work.















You are welcome
Problem pwnd. Many thanks.
You are welcome.
Thanks Arun, this was really starting to do my nut in!
You are welcome.
Thanks Arun. I had the exact same problem.