Yes, it's a backup program that uses online storage. I wanted off-site storage for my photos.

It also backs up to a local external drive.

I don't understand "change Mozy's rule to Allow". Do you mean to change Norton's rule to allow Mozy? If so, I've looked into that and it's confusing. Here is what I can find concerning Mozy in the Firewall area:

Under Firewall Program Rules, there is an entry called "MozyHome Online Backup Service bootstapper".

                 The entry says "Allow, Direction: Outbound, Computer: Any Communications: Specific, Protocol: TCP and UDP"

I am changing the Direction: Outbound to Direction: In/Out

I'm changing to see if that fixes the problem.