Difficult to identify rules causing a block other than opening the logger and reloading the page, and then not possible to adjust enforcement of that rule on a per-page basis (or at all). Adblock Plus offers much better control of this sort of thing.

Ublock Origins not working properly on face book since the last 2 Firefox updates.
Keep getting "Sponsored posts" on the right side of the page.. If I move the news feed column down, The "sponsored post" pops back up. Just had it happen again. Randy, how do we reply here? I have latest Firefox, 57.0.1

This add-on uses about 1/2 GB of Memory in Firefox. It claims to be easy on CPU and Memory? I need to look for lighter ad blockers!

found better

Ublock Origin is a very good adblocker but latest version seems to slow down the browser versus not having it on at all which in the past was not the case.

Hard to figure out and use after using ABP for several years. Can't get element blocking to work, can't intuitively add my own filters, can't track number of filter hits. New non XUL tools seem to be much more limited in control.

The latest update has rendered this add-on useless. Many websites fail to display properly, instead a shell is displayed, but the moment Ublock Origin is disabled it works fine. The interface is terrible so removing or adding elements is confusing.

I have returned to ABP.

Blockiert leider alles, muss ihn dauernd auf inaktiv setzen, um meine üblichen Online Shops öffnen zu können. Daher wechsle ich wieder auf einen anderen Ad Blocker

Теорехтически это может и лошадь, а прахтически она падает.
Рекламу худо-бедно блокирует, но пользовательские фильтры если и запоминает, то с пятого раза, причём составлять их нужно полностью вручную. О блокировке жучков на сайтах нет и речи. После трёхдневных попыток привести это чудо во вменяемое состояние, отправил его в канализацию. Админь!

Bonjour,
Il est toujours impossible de participer au forum de Microsoft Community (modifier un message, poster une réponse) depuis Firefox 56 si uBlock (en version 1.14.16) est activé au démarrage de Firefox.
https://answers.microsoft.com/fr-fr
Rien de tel sous Chrome (ublock en version 1.14.12 qui marchait aussi sous FF).
Ce n'est toujours pas corrigé.

When ublock is enabled half of the pictures on facebook's timeline won't load.This started happening this week

Не стабильный! Рекламу Яндекс. директ то блокирует, то нет, не смотря на постоянное обновление фильтров.

Ebay no longer works—clicked links get placed in the address bar but until you highlight the address bar and press enter, it doesn't work. Also paste and go on Wordpress sites is fubared.

最近、ublockが広告を消す前に、一瞬表示されてしまうようになった。広告の表示にublockが追いついてない感じ。なのでAdBlockのほうに変えてみたらそっちはそんなことない。ということで乗り換えました。昔はこんなことなかった気がするんだけど。

过滤过了一段时间后就没用了，卸载后重新安装也没用，除非重装火狐浏览器，然而太麻烦了。

I had problems with pages not displaying properly. Text on buttons would disappear. On YouTube, in my comment section the text turned to dark grey and became impossible to read because I'm using the new Dark theme. It removes the ad above the 'Up Next' video column but then leaves a blank space. Took awhile but traced it to this add-on. Uninstalled.