Now, you should see a list of files that contain reports.From that explorer window, double-click on the Mozilla folder, then double-click on Firefox and then on Crash reports.In that text field, enter %APPDATA% and press Enter.This should bring up a window that contains a text field. Press the following shortcut to get a Run window: +.If Firefox does show up in the task manager and then disappears, please perform the following steps to give us a crash report ID that helps us find out more about the cause of the crash. If Firefox doesn't even show up in the task manager after opening the shortcut, can you right click on the Firefox shortcut and check the Target line under the shortcut tab to make sure that the link to the executable didn't get changed somehow? If you open up your task manager, is the Firefox process running after you click on the shortcut or the executable? I am not sure what system you are using, but up until Windows 7 for sure you can open the task manager by right clicking an empty space on your taskbar or on your system tray clock and selecting 'Start Task Manager'.

Sorry to hear about Firefox not opening when it should.

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