Mute Tab is a Chrome extension developed by trmcnvn that restores the functionality of the 'Mute Tab' feature from previous versions of Chrome. With Chrome 71, the flag that allows per-tab audio muting was removed, and this extension provides a solution to that problem.

The extension offers two ways to mute individual tabs: by using a new context menu option or by interacting with the extension icon. This way, users can easily mute tabs that are playing audio without having to mute the entire browser. Mute Tab is a free extension that falls under the Browsers category and Add-ons & Tools subcategory.

Overall, Mute Tab is a useful and practical extension for Chrome users who want to have more control over their browsing experience. It is easy to use and provides a simple solution to the problem of per-tab audio muting in Chrome 71 and later versions.