Not if you run uBlock Origin they aren't. That said, it's telling that it's so difficult to disable auto-playing video entirely in Firefox. I'm not convinced t

Not if you run uBlock Origin they aren't. That said, it's telling that it's so difficult to disable auto-playing video entirely in Firefox. I'm not convinced that a profit motive is NOT the reason behind that (it is possible but requires a bunch of about:config changes; it's not exposed in the settings UI and that smells sinister) Unfortunately at work I must use Chrome without an adblocker. It's pretty terrible.