Mozilla Firefox since version 6.0 (thru 6.0.1 to 6.0.2) has not been installing software updates properly for me on a Windows 7 machine via the usual 'Help > About Firefox > Apply Updates' command. Firefox always shows the 'Apply Update' button and fails to upgrade or check for new updates. Firefox does close and attempt to update eventually restarting without update occurring and the only way I have found to update is to manually install the latest version over the top. However this manual workaround hasn't corrected the embedded Firefox update functionality. Read on for the solution that worked for me...
