Firefox Extensions?

Are there any good firefox extensions that turn down the volume on games, so I can like, play a flash game and have my music in the background w/o having to pause winamp for the audio in the flash?

This would be very helpful in place of having to hear both the flash and the winamp at the same time. Also, is firefox on a different audio line on the PC? Cause if so I can just adjust that in my volume settings on windows.

Thanks for reading, y'all

Same as >>1

This thread has degraded into a flamewar, is there or is there not any Firefox extensions that follow this description?

What about an extension to turn down the volume just embedded media; excluding flash. Like .wav and .mp3 files embedded in a page.

This is incredibly useful, the closest thing, in terms of useful ness has been DownloadThemAll for me. But that's about it. Just post some really useful extensions if you can't find this one.

I'm going to do some looking too.