I'm browsing the net. Two tabs open. I click on a link in one or try to close a tab and nothing happens. Firefox then turns to a plain white page although scrolling the mouse around proves it can links are still being registered. Right click at the top and the menu options become available. Go top right and left click where the Close symbol will be and Firefox will close ( if one tab ) or ask to confirm ( if more than one tab ) However, i cannot see anything no matter what and have to End Task in Task Manager Any ideas ? Only happened in the last week or two