Whenever I close all pages of Firefox my computer becomes completely unresponsive. No mouse movement, clicks, or keyboard inputs make a difference. I tried reinstalling Firefox, creating a new profile, and installing different versions of Firefox. This is not a problem for other browsers like Chrome. This makes my computer freezes for minutes at a time which can make things difficult for me when I am under a time crunch. I could not find any questions on this matter in any forums. Is this a problem with Firefox or my computer? Has anyone encountered this issue? Does anyone know how to fix this?