I previously had the same problem but I though it had to do with the toolbar.
https://community.norton.com/en/forums/norton-security-did-not-update-firefox-toolbar
Today, I had the same problem when I restart the computer I ran into error 8504, 101.
It says Repair Installation Failed. OMG again! - Again I never had this problem with Norton 360 but with Norton Security every patch I hope it works.
Now I guess it is telling me contact support again.
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