Was quite good for some time but not anymore. Quite useless now. Practically does not block anything.

Great thing, but I was already using "Youtube enhancer" to block ads. I use this, ABP, to stop the annoying video thumbnail previews on youtube, and for no other reason. It stops this annoying feature: the videos used to start playing a 3 second preview when you hovered the mouse on the thumbnail, but not anymore. BUT: websites are aware of this extension (even if you turn it off for that website) and they can annoy you. Youtube seems to detect the extension, and force all my videos to HD 1080, or whatever is the highest setting. That chews through my data too quickly.

Also: Other websites detect you have this extension, and tell you how to deactivate it (whitelisting) for their website only. They know you have the extension, but they DON'T know whether you have turned it off, so you can ignore their instruction and just refresh the page.

Works great! Have been using it for months, almost a year.

Uno de los mejores bloqueadores de Publicidad a ojo cerrado ;)

For anyone seeing YT ads all of the sudden, it's this blocker addon. It conflicts with other adblockers. Disable this particular one in FF, and the rest work as they should. This one, when enabled, allows YT ads to go through. Not sure why and really don't care. I'm going back to Ublock now.

This is by far my favorite ad-on for my browser. I'm not bombarded by ads like I was without it.

5/15/2021 Stopped blocking ads on youtube.

dont stop those annoying youtube ads

Does not block Youtube ads

Совершенно перестал блокировать рекламу! Ютуб, поисковики, различные информационные сайты... я словно вернулся на 20 лет в прошлое, когда рекламой был загажен весь интернет.

melhor extenção