I thought this post might be of use to anyone using Firefox and connected through DSL or some other networking type internet connection.
My setup is like this:
The network hub (or switch) assigns each computer an internal IP address. I found thats its necessary to add the following Zone:
Click on Firewall, then Zones. Click Add>> (at the bottom of the screen) and choose IP Range.
Type in the following values:
Click OK and then Apply, all done!
Operating System:Windows XP Pro
Product Name:ZoneAlarm (Free)