- by Firefox user 14517161, 3 years agoRated 5 out of 5None of the Youtube extensions have this functionality anymore, but the good news is this works perfectly alongside Enhancer and other extensions [atm].
Thank you very much!
- by STaylor9726, 3 years agoRated 5 out of 5Works perfectly with a few other tweaks!
When I first installed this add-on, it worked perfectly. I recently uninstalled it when YouTube updated it's platform.
This is how I got it to work again and how I stopped YouTube videos from preloading, AT ALL.
1. Get this other add-on YouTube Design Preserver 2.2.0 https://github.com/GuyXY/YouTube-Design-Preserver. Set it to 'Old Layout'
2. In your web browser, go to About:Config. Scroll down to and double click media.autoplay.enabled. This will change the value from 'True' to 'False'. No media on any site is allowed to start playing automatically.