I had a pop-up ad that related to the sites i was on, it said "Recommended for you" and I could shrink it or click the link, but it wouldnt go away. I did some updating with mackeeper and ad block plus for firefox, and mackeeper found nothing, but i believe ABP blocked it. The outcome is that the pop-up is gone, but youtube videos arent viewable, and now I have a link that says I need a plug in updated.. evrything is already updated according to System Updates and mackeeper. Some large photos wont show either. Help?