Enable Chrome's "Mute This Tab" Shortcut in the Dev Channel

Ever have a tab start playing audio without your permission?

The latest version of Chrome’s dev channel lets you mute the tab with a simple click.

Chrome should automatically scroll down to the “Enable Tab Audio Muting UI” flag.

tap the enable link below it.

Hopefully, this will make its way into the stable version of Chrome soon.

Google Chrome Gets Experimental Audio Muting Functionality| Ghacks