It's really powerful with a great set of options, so you can customize at will and even set different rules for individual websites.

Videos and Flash animations that play automatically when you open a page are obnoxious enough, but if you've ever tried to queue up a load of videos to watch later in the background and they all start playing at once, you may have wanted to throw your computer out the window.

Fortunately, the self explanatory will help with that, as videos will only start playing when you switch to that tab. It's that simple.