After installing the latest update to Firefox a couple of weeks ago, loading new pages into new tabs takes a very very long time IF the page loads at all. I usually have to close the original tab to get the new tabs to load their pages. Sometimes I have to close all Firefox windows and start over to get the page I want to load. This only started after downloading and installing this new update. I had no problem with new pages/tabs with previous versions. I have rebooted, run full scans with Spyware Doctor, Malwarebytes and McAfee without solving the problem.