If anyone here has the time and inclination to help me beta test a side project of mine, I have posted my new Chrome Extension to the Chrome Web store as "unlisted" so my friends can help me find bugs before I give it listed status, where anyone on the Internet can get it.
The extension is called Silent Site Sound Blocker and it allows you to create a white list of sites that are allowed to play audio. Sites not on that list will give you an alert, asking for your permission when they want to play sounds. You can also create a black list of sites that can't even prompt you or switch into silent mode where all sound is blocked.
Anyway, lots of issues to find but I thought I'd ask if anyone wants to have a look.
Known issues: The CSS of the audio prompt can look different (fonts too big, etc) based on interference from the host page.