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Add an indicator for watched videos on YouTube. Use GM menus to display history statistics, backup history, and restore/merge history.
< Обсуждения: Mark Watched YouTube Videos
Script has been updated for site changes.
https://chromewebstore.google.com/detail/watchmarker-for-youtube/pfkkfbfdhomeagojoahjmkojeeepcolc Updated on November 6, 2025, and works on /watch?v=
/watch?v= Left out?