I like this extension, a lot... but... it's not possible to use custom sounds, can you add that feature?

And maybe sounds for:
- Navigation (start and complete), I know this one have the "Update Tab".
- Download (new, complete, error).

Really nice extension - tho it would be cool, if we could customize the sounds. Also adding cooldowns to the UI sounds (specifically reloading the page) would be nice, because it spams the reloading sound if webpage redirects too many times