Most features are either locked or severely restricted behind a paywall. But they have updated the "play all" button to actually play all videos instead of just the latest 50, so it's good enough for me.
The base features аre free. Watch the full tutorial: https://www.youtube.com/watch?v=r4iX53Qg2sE If you need more, become my supporter. It takes time to update the extension every time Youtube changes internally.
