Best adblock! Works fine with YouTube.

if you use only one extension, it must be this.

La mejor de todas!! ojala nunca cambie...

The best ads & content blocker out there! I really hope Mozilla doesn't ever follow Google's horrible move of deprecating MV2, because this extension is absolutely a must-have for me.

Must have addon for all firefox users! Many thanks to developers!

THE adblocker.
anything else is either a fork of it, or worse than it.