We use a Bluecoat device that must be authenticated on a time schedule, before a user can browse off site. This breaks the updater on Firefox if the end user has not yet authenticated. I can add the Firefox update servers or domains to an exclusion list so the Bluecoat will not interfere. I need to know those names. I did some network sniffing and noticed aus2-mozilla-org.geo.mozilla.com but I assume there are more.