Like pinned tabs, tab muting isn't a new idea, as it's been implemented in other web browsers in the past. But starting with OS X 10.11, Apple has brought native tab muting to the Safari browser.
The ability to mute tabs at will brings more control to the user. It's especially beneficial when encountering those annoying auto-playing advertisements.
In this video walkthrough, I'll show you how to use Safari tab muting, and explain its ins and outs.