I used to pass much, much time on youtube videos that were pretty stupid.. Plus, I used to get many recommendations of youtube channels I didn't want to watch videos from.

And, OMG, this "Video Blocker" came in my life.

It definitely works like a charm, you just have to copy the channel name, check that there is no space added in front or at the back, and paste in the "Add" tab with the "Channel" option.

Then, you'll never see the video channel in recommendations or elsewhere.

Now I watch only music and educational videos. It really helped me stop losing time on totally useless videos. Two thumbs up to the dev , thanks you very much Lemonrice !

Edit : I saw the other comments about the update that makes it does not work anymore.. But it seems to have solutions too. I may be lucky, it never stopped working perfectly for me !