After closing down FF, FF is still running. I have to go to task management, to close down, otherwise FF will not start again. I had this problem on a XP-computer. Since a few weeks, I have a new Windows-8 computer. FF was doing well, bus after I installed a program, the 'old problem' appeared. The program is of a reliable source: it is used to make a safe connection with the governmental database on health Who has the same problem? Is there a solution. I tried a lot of things already: - a new computer and new OS - shut down all addon and plugins etc - started up in safe mode - re-installed FF - update to latest version of FF Thanks Visje