This one, called TrackMeNot, is a Firefox exstention that, as AP writer Anick Jesdan says, “seeks to make your searches more private by hiding them in plain sight.” It works by periodically sending out random queries to popular search engines, hiding your actual search trail “in a cloud of ‘ghost’ queries.” This makes it less likely that anyone can identify you by aggregating your searches, as The New York Times was able to do with an AOL searcher.