Safari won't quit!
I quit, and it re-starts. I force-quit, and it re-starts. I go to the Activity Monitor and force-quit its memory, and it re-starts. It even interrupts shut-down! I just updated Safari to Version 12.0.3 (12606.4.5.3.1). The Mac is running OS 10.12.6.
MacBook Pro 15", 10.12