Firefox opens, then closes as limited user
Under Windows 10 Home, Firefox x64 opens and closes immediately as a limited user. As the administrator this does NOT happen.
I uninstalled Firefox, deleted the temp files and re-installed a fresh copy of Firefox. The same issue exists. If I try to start in safe mode as a limited user, Firefox does NOT open.
Firefox worked without issue yesterday. Has a Windows Update caused this issue? The computer is new with limited programs installed. It can't be the firewall as running Firefox as administrator has NO issues.
What do you suggest?