Adblock Plus

ABP wasn't blocking the ads at youtube.com, so I installed the last version of ABP and... still without working!!! Could somebody help me with this? It´s so annoying to have a playlist with the same fucking advertisement before each video... btw, I'm not an computer expert, but I can follow instruction Thank's very much

If this issue still exists after having tried mapx' suggestions, please file a more detailed issue including some examples at https://issues.adblockplus.org