How to turn off autoplay videos on Facebook, Twitter, Firefox, and more
You’ve probably been caught off guard by videos that play automatically on Facebook, Twitter, or just across the internet in general. They begin playing as soon as you load a page or (if they’re more deviously implemented) when you start scrolling through a page.
Automatic video play is a feature that, while nice to have when it’s surfacing content that’s related to your interests, can be pretty annoying. Autoplay videos can be harmful, too, exposing you to violent, offensive, or otherwise unwanted content that you shouldn’t have to see by default.