Locking as duplicate. Please continue with [/questions/968876] <br /> When in any web site but I will give ESPN F1 as an example it always shows four latest topics. When I click on to any of these up pops another two to four new web sites advertizing all sorts of junk I don't want to know about including very regularly asking if i want a USA green card. How can I stop this. I've tried deleting Firefox and reinstalling but get the same result. I've been using Fire Fox for well over ten years now both at home and at work where there were no such problems when i retired some four months back. Can you please help.