FIREFOX LOSING IT

THANK YOU VERY MUCH! THIS PAGE'S SOLUTION REALLY SAVED MY DAY (AND DAYS TO COME)! WITHOUT THE WARNING-AT-QUIT-MESSAGE, I SOMETIMES ACCIDENTALLY DID HIT COMMAND-Q INSTEAD OF COMMAND-W AND THEN AAAAAAAALL TABS (SITES VISITED) WERE GONE FOREVER! AT FIREFOX COMPANY THEY HAVE LOST THEIR MINDS DISABLING THIS CRUCIAL WARNING MESSAGE! ONE MORE OF SUCH ARROGANT TECH STUPIDITY TRICK AND I WILL SWITCH TO SAFARI OR CHROME FOREVER! (SORRY FOR THE ALL CAPS BUT FOR ONCE THIS WAS NECESSARY :-)