I gotta say...I switched to mozilla based on recommendations here and elsewhere due to the pop up problem I was having in IE. NOW, I think I'm getting even more pop ups with mozilla than I ever did with IE. In fact, during an update process on one of our computers, I can't even get the stupid mozilla to work at all....back to IE on that computer. Still using mozilla on the laptop but ready to go back. And I can't figure out how to update the ad blocker either. Currently not a fan.