It happens when Firefox isn't even running. It was running when the snapshot was taken because I was replying to this thread when I took it. However, with Firefox closed down, all the internet apps still access xbox.com and that's what I want stopped. Something is hijacking the internet connections and re-routing the apps to a site that has no relevance to it.
As i have run 2 different VK's with PUP protection and 3 different spyware/malware programs and all have come up with nothing, I can only assume it is a built in windows 7 thing in which case, there must be a way to stop it.