Sorry, but this extension either hides everything or nothing. When it is on, there are zero videos in my subscription feed. When it is disabled, all videos are visible. Yes, I ticked the hide watched box, no I didn't tick the mark all watched box.
Hi, Im sorry to hear its not working for you! Can you please file an issue on Github with details such as your Firefox version, screenshots, etc? https://github.com/OsaSoft/youtube-better-subscriptions/issues
