Almost too good to be true. But so far, it seems it is.

The main reason I wanted this extension was to make YouTube stop spamming already watched videos, random playlists and useless shorts.
1) It doesn't block already watched videos, it just makes them less visible by hiding the thumbnail and dimming their links;
2) Sometimes it marks random videos as watched, but I never even clicked their links, even less watched them;
3) It cannot block playlists, as far as I've used it;
4) It blocks shorts successfully AND entirely (not just dim their links), which is good.

Update 23/Feb/2026: It's worse now. The button to hide videos won't even show up. I enabled it, restarted Firefox, and still not there.

Great extension and much lighter than the enhance youtube extension which is also great but slows down the system. I prefer this one

On Android versions Firefox The extension does not work

Bien pour une extension, mais je recommande plutôt d'utiliser des userscripts avec TamperMonkey et assimiliés.

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MàJ 23/05/2025 14:59

@développeur @code-for-charity @ImprovedTube

Pour éviter d'avoir 3600 extensions. Un script est + léger qu'une extension complète.