It's horrible. It blocks not only advertising but also the main elements of many sites. For example, it's impossible to work with send.firefox.com and make payments on privat24.ua.

Отличный блокировщик!
Куча готовых подписок - не надо искать нужные, осталось только включить или отключить.
Понятный интерфейс, пусть и с некоторыми оговорками.
Собственные фильтры. "Пипетка" для выбора элементов страницы.
В общем куча возможностей.

Отличное расширение для Firefox 57.0. Адблок удалил к бебеням, стал жутко тормозить браузер. Тут случайно нашел этот доп, попробовал - доволен, как слон. Теперь только uBlock Origin forever.

отличное приложение

Horrible. Blocking key sites I need to access while allowing one's I don't want. Great perhaps for geeks. Appeared with last Firefox update but no explanation on how to white list sites you don't want screwed up. Once I blew an hour searching/viewing YouTube for how too's it seems to work. Would be nice if uBlock provided simple videos on how to use it.

Excelente

Awesome!

Works great.

I've used this for a few weeks now. Seems good, but it needs to be more pedagogic in how to use it. It's like it's overly simplified and the understanding for what's what is lost. Since it's efficient and does take very little from cpu etc, I hope for more clear user pedagogy.

Good

Very capable extension, easy for power users to accomplish advanced tasks impossible with other blockers. Good open source project with pro-user policies.