I'll be on a site and it will suddenly redirect to another site. This can happen at any time, sometimes as soon as a window opens, sometimes the window can be open for considerable time before it happens or it may not happen at all. It does not have any relationship to what site I am on (The same site might redirect immediately one time and not for an hour the next). I can always use the back browser button to get back to the original website. About 75% of the time this happens I end up on a Facebook login page and when I go back I see the original redirect went to some Facebook game/dating/or some such site, none of which I have ever used. I do have Facebook but I do nothing on it except go my wall to see pics and posts of my family (5 'friends'). I have never even posted a comment. The other 20% of the time it goes to various sites like surveys, support your vet.org, or ones with just random numbers and letters. In regards to the "This happened" question that follows I often have 3 to 5 windows open at a time and this will happen 20 or 30 times within a 4 hour window. I have tried both Internet Explorer and Google Chrome since this started and this has not affected either of them. I even tried running each simultaneously with Firefox and they held steady while the Firefox pages were being hijacked.