worked well until a few days ago when it was being detected by youtube

It works well for me but I miss one feature, watching YouTube videos in full screen. I think this feature would have made the extension complete. There is another problem with the UI design. When you want to control the speed of the video, the slider at the top that increases or decreases the speed goes outside the display, so it cannot be used properly.

Good idea in theory, but it is this precise addon that made YT to start showing me "Ad blockers violate YouTube's Terms of Service". Disabling it restored my access. Probably an update that went wrong, since it started just a few days ago.