Gave my Firefox a permanent ugly button on left bottom that won't go away

Does not block Mcafee etc. popup ads

it blocks nothing on youtube. All the ads works normally like there is not the adblock. Useless

Заявляют, что блокируют ВСЮ рекламу. Но это не правда. В отличии от конкурентов, появилась реклама там, где ее не было никогда (на youtube) например!

Es blockierte Seiten, auch als es schon deinstalliert war.

I tried this to block some of the numerous YouTube ads. It worked at first but after closing the Donate page and trying it further it really negatively impacted FireFox performance. YouTube would buffer where it never did before AdBlocker Ultimate was installed. The YouTube audio would just stop playing midway. I rebooted my PC multiple times, cleared Firefox browswer cache. Finally I just uninstalled AdBlocker Ultimate and all my problems went away except for the YouTube ads. It's not just YouTube that was impacted negatively by AdBlocker, other sites would time out or just stop working. Removing AdBlocker solved the problems.

YouTube is injecting so many ads now it's getting irritating like the old popup browser ads we had in the early 2000's. I guess they want to irritate viewers to pay $9.99 a month but everyone wants $10-$15 month for content, Netflix, Hulu, YouTube, CBS, Disney, ESPN, Amazon...etc. I already pay for 3 services pr/mo + Internet.

Anyway, AdBlocker Ultimate really bogged FireFox down and who knows what information it collected along the way. Not recommened.

There's no way to see what it has blocked. According to the developer, "a filtering log is only available in our desktop ad blocker only". Also, there is no way to whitelist only part of a website (for example, to whitelist "https://www.example.org/admin/" but filter the rest of the site normally).

your adblocker is shit and doesn't work

bad, very bad!

not free. hounding me to pay and blocking pages with their solicitation!

Doesn't filter youtube ads.

Worst adblocker i tried so far. Every single ad from youtube interrupts the content i´m trying to watch as if there where nothing preventing it.
Absolute 0.

bloqueo los primeros dias, despues no hizo nada mas..

Doesn't block YT ads, inappropriate "Chat with singles" type of ads, pop-ups, clickable elements. Just useless.

Doesn't work on Twitch.tv

What's the point of having an adblocker to stop annoying pop-ups when the same adblocker splashes its own adverts across YouTube videos at crital moments while watching.
Clearly a case of marketing department intervening with engineering again...

Did not block Youtube ads, did not block popups and was missing many ads. I hate this ad blocker.