>>Firefox will also allow muted video to play back automatically.<p>Good lord, they didn't go far enough with this. IME, muted video is almost always a waste of bandwidth that I don't care to see anyway. Local news sites seem to be the worst with this, where they will autoplay the video muted on the same page as the article. As someone who occasionally operates off of a limited-bandwith connection, I get more-and-more frustrated with the modern web every day. If I'm clicking on a local news site's article, I expect to just read the article. 9 times out of 10, I scroll past a muted video that has tried to play advertisements, and I will be finished reading the article where the video is 30% finished. I'm sure this option is changeable in about:config (which, besides preventing chrome monopoly is why I use FireFox), but most users will never adjust any of those settings. How much power globally is wasted burning CPU cycles to render this garbage content?