Helps narrow down which tab that sound is coming from, and often lets you stop or pause it
MuteTab is a best effort extension approach to browser sound management. Written prior to the existence of Chrome's audio indicators.
What this does:
* Shows a dropdown list of tabs that might be playing sound (because they include Flash or other sound sources.)
* Provides a context menu that does the same (but only for current, other, and all tabs.)
* Lets you stop or close potentially noisy tabs (or pause if it is YouTube, QuickTime, or HTML5 video.)
* Optionally automatically stops background tabs
Limitations:
* When you "mute" a tab by stopping it, it makes games and videos unplayable while they are muted.
* The dropdown list can grow large, making it hard to narrow down your sound.
* Doesn't detect sounds from popup
windows or that use Web Audio. Also misses a few other sounds due to bugs.
* Doesn't affect tabs open prior to installation of extension.
* Automatically stopping background tabs can slow down browser usage due to current implementation (and it misses popup windows / web audio.)
