Audio on Ubuntu 9.10

[Arun Shrimali]

Dear All,

Recently I have loaded Ubuntu 9.10.
I would like to run audio on browser (firefox). I ahve tried a lot to
run audio on firefox but failed. I have loaded restricted-extra, all
gstreamer, xine, etc. but no result. Where as sound is working
properly on my PC. (with booting sound etc.)

I could not run the radio in google gadgets, I could not run BBC online radio ??

Can any body help me how to clean all the junk and installed required
softwares / codecs  (???) so that I can play audio on above  sites.

Regards

Arun