So I was looking at a Facebook group this morning and saw something that was posted in the group's feed that decided to autoplay on it's own despite "Block Audio and Video" being the default within the "Settings - Autoplay" screen. I don't understand why this is constantly an issue with Firefox. Every single time, every update, every install, it always and continually becomes an issue with websites that I visit with Firefox. Even a completely fresh install with that above-mentioned setting, it's still an issue--nothing to do with customization of any kind, it's just that Firefox isn't doing what it's supposed to do. What's going on here with this? Why isn't Firefox able to stop autoplay of videos within Facebook? I shouldn't have to rely on website settings to turn something like that off when it's the browser that allows the playback. I'm clearly missing something (I guess) so I'd appreciate if someone can shine some light on this because it's infuriating.