Firefox will now automatically block those annoying autoplaying videos

Execute Firefox 66.
Mozilla just dropped the latest version of its popular Firefox web browser and it could make your internet experience way less annoying. 
Its hot new feature: automatically blocking autoplaying video with sound. Videos that autoplay on mute by default won’t be affected by Firefox’s block, so it’s clear that Mozilla is focusing on specific types of videos that go out of their way to annoy users. Videos that autoplay after you finish watching a previous v