This script will look in your recommended feed for videos with a full red bar, which shows you've watched them already, and then go through the 10 clicks needed to tell YT to stop showing you videos you've already watched.
< Σχολιασμός για τον κώδικα YT - Fuck Watched Videos
please merge this into https://github.com/code-for-charity/YouTube-Extension/issues/1328