This week, Chrome for Windows, Mac, and Linux had a new feature added.
You can finally mute any single tab by just right-clicking a tab that is producing sound and hit “Mute tab.”
Previously, the only option you had was to figure out what’s playing and closing the tab outright.
Firefox 42 beta not only shows a speaker icon if a tab is producing sound, but allows you to mute (speaker icon gets crossed out) or unmute the given tab with a single click.
Via VB
