Wouldn’t it be great if you could save just any audio fragment directly from your browser?
It’s isn’t necessarily that this idea has to be an Firefox add-on. If this can be constructed web-based-wise, it’s even better! People should be able to save the audio-file on their harddisk/through email/Pownce afterwards. This way mankind is able to save sound ,from the web, which they want to use for other things, like ring-tones/ sound effects for flash/ etc.
Using Pownce (I still have a few invitations left!), you could send your friends a sound-effect/fragment.
And to make things even better, an online sound-editting environment would be great! (something similar to online video-editting apps (link)

Don’t be shy and put your comments and/or suggestions into the comment field below! Scripters can contact me through the contact page