When I first open Firefox flashes open closes really fast then will open on 2nd try. This only happens on first time after start up from total shut down. It will not repeat if windows has not been turned off. No crash reports are found from about:crashes, and windows cannot find "%APPDATA%\Mozilla\Firefox\Crash Reports\submitted" when I entered it. I just built this this PC after black Friday with good parts, my last build is 14 years old and still runs. This just started a few days ago. Thanks for any help you might me. Philip