Update your certificates already! Tired of getting a pop up from Bitdefender that it blocked a connection to github.xyz every time I use the web. Extremely frustrating!

Blocked image content and did not allow even if disabled for website. Refreshing Firefox did not help. Had to uninstall/reinstall Firefox to completely get rid of it.

Doesn't let you whitelist so websites at all. There are some sites it has decided to block and there's nothing the user can do about it. Unfortunately that policy breaks some websites. Give us back the green button!

Seit über einem Jahr gibt es eindeutige Probleme mit ublock-origin und der Seite: ebay-kleinanzeigen.de oder dem >Login< auf ebay-kleinanzeigen.de Auch mit Firefox 85.02 ist das Problem immer noch da. Fehlermeldung vom Firefox: "Der Tab ist gerade abgestürzt"

Doesn't work very well on FireFox Android. Does ok on desktop, but don't rely on it to block much on Android.

国内用户更新不了数据库

На блокировку ресурса было 2 минуты. Не смог освоить это сложное приложение, хотя я и программист. Сделайте просто кнопку блокировки ресурса и все. Поэтому 2 звезды. Перешел на другое приложение.

I have issues with uBlock on Apple Silicon Firefox. It doesn't block anything, and usually when you open the uBlock menu nothing appears. Occasionally, an extension (possibly not uBlock) crashes Firefox.

thanks for hibernating uMatrix in favor of uBO which is harder to use and offers less granularity

these 2 projects should never have been split

Ive been using this extension for years. Now suddenly i am seeing add after add on Youtube. Why is that dear developers? Are you aware of the problem?

Судя по всему начали интегрировать кривую рекламу, белые окна на ютубе которые приходится скипать...

Does not work for Twitch at the moment, kind of a bummer since it's the site I visit the most.

I used to love it but since a week or two it doesn't block ads on Facebook anymore. Will try again in a month and change the review if it works again, because I really had no problems with it before.

Schwerer Bug in Verbindung mit Ebay - Login und logout nicht möglich. Ebay Seite wird nicht mehr korrekt dargestellt.
Nach Abschaltung alles normal.

Something has changed between FF 80.0 and 80.0.1! Aug 30 and Sept 03, 2020. Either a change to the code for uBlock Origin, or a change Yahoo made, that doesn't like uBlock now.
On Aug 30, 2020 I could access my contacts normally in Yahoo mail. Now on Sept 03, My contact list is grayed out, until I turn off uBlock, then my contact list appears normally! I STRONGLY suspect yahoo made changes, since the uBlock update preceded this problem!
It may also have to be Off to allow display some web flyers!

Bloquea sonidos y audios de páginas web

No longer works for intranet http servers even when on the whitelist! Research shows that this might now be a feature.