Firefox and the AdBlock Plus extension?
i am having a problem with ad poping up in 80% of the websites i visit. I tried spybot, adware da lavasoft, AVG, AVAST, ComboFix, and nothing, the damm ad, always appear. he comes from down the screen, and occupies 1/4 of the screen, and always with info relating the site i am watching. I want to remove that plague. how can i do that ?