It's fixed now.

I think FF is messed up!? Download failed. Please check your connection. ... all else works fine

The recent update BROKE ALL WEBSITES. Literally almost ALL. I deactive it until works again. (Used to be perfect though, so definitely give a 5 star when it works normally again)

Guys, just delete it and install again, worked for me here. Greets

For a long time it worked fine, but today it seems that it suddenly began to block scripts for the normal operation of sites - such as buttons on YouTube, control elements on other sites, and even Google search.

Doesn't work anymore. It's strange after a couple of days it still doesn't have any updates or any announcements.

It seemed strange after some websites I frequently use could not be loaded. Started to diagnose the problems and found other browsers were working fine, found out adblocker ultimate was the culprit.

worked well until it started blocking everything and messing up web pages. it feels like it got compromised, had to uninstall

5 star. Helps a lot keeping the add away.

No longer works properly with Firefox. Keeps videos from playing in latest update. Had to uninstall

Empezó a fallar en un montón de páginas, hace que sean lentas, que no carguen, algunas páginas se enciclan en recargar una y otra vez, en YouTube no funciona bien, los video no inician, incluso en la misma página de búsqueda de Google da errores, en Amazon tambien muestra error, en fin, la lista es larga y he tenido que desactivar el complemento para navegar bien, muchos fallos a la vez, imperdonable.

Recently started blocking absolutely everything or at best case scenario making loading pages SUPER slow. Might have been compromised, idk. But I don't have patience to deal with a software that isn't QA'd properly.

I was about blaming Firefox and then I noticed that issues are related to the AdBlocker Ultimate. It was perfectly working before. What happened!