What's Playing?! - Silence in a Click is a free Chrome extension developed by gigamiga. It falls under the category of Browsers and is specifically classified as an Add-ons & Tools.

This sleek extension aims to provide users with a clutter-free and noiseless browsing experience. It helps users instantly identify and mute or close tabs that are playing audio with just a single click. By highlighting tabs that are outputting sound, users can easily locate and manage them.

Additionally, What's Playing?! changes the search engine on the New Tab to Microsoft Bing. Users can enjoy a seamless browsing experience while keeping unwanted noise at bay.