Hi! The youtube website uses a proprietary streaming method that they change periodically, and I prefer to not play this cat and mouse game and leave it to the people who actually knows that Youtube works. Youtube is actually very hard to download from if you don't have something like yt-dlp which can't run in an extension's environnement.

But there is still a way to download Youtube videos, if you watch them through Invidious instances, it will work since Invidious uses the standard streaming method!

- Open the add-on and click on clear list.
- Open https://inv.nadeko.net/watch?v=vwSRqaZGsPw (or search for your video on inv.nadeko.net), and start playing it. (If video does not load, try to switch to different backends until you get one that works)
- Open the add-on, you should see a video listed there!

I don't get notified when you edit your review, but I hope that helps and if you need any more support please contact me directly! (Heart icon at the bottom of the add-on)