Please Note: My personal journal is now fully independent of my main personal Web site, but I am still working on some things such as my new page designs and many improvements to PageDrive, my software that runs my journal site. If you encounter any technical problems, please either just try again a while later or let me know.
When I was loading some bookmarked comics into tabs at 2:15 this morning, a Symantec warning window (it just said "Symantec", not Norton AntiVirus) popped up with the following "Program Alert" for a security threat it deemed "Low Risk":
A remote system is attempting to access firefox on your computer.
Yes, with "firefox" in lower case.
The details section listed the offending remote address as 207.46.209.168:5004 and under "What do you want to do?", the corresponding menu was set to "Allow always (recommended)" with no indication of why Symantec recommends that I always allow unexpected connections of any kind from unknown computers.
Here is a window-capture of the Symantec window itself plus ugly gray corners added by Windows Vista's built-in Alt+PrtScn window-capturing system:

Since always allowing unexpected connections from unknown computers sounds like a pretty stupid idea to me, I opted for blocking the attempt instead.
Blocking the attempt was not enough for me, though; I wanted to know who was trying to access Firefox on my system. I wondered if it might be some hackery originating from Ctrl+Alt+Del—the first of the alphabetically sorted comics I was loading and the only one that did not actually load and so seemed by circumstance to have just been blocked by Norton AntiVirus. However, a quick lookup resulted in a rather surprising answer to who owns 207.46.209.168: Microsoft!
What exactly is Microsoft trying to do to Firefox on my system? And if I were using Microsoft's own anti-virus software instead of Symantec's horrible, but occasionally useful Norton AntiVirus, would it have warned me? Why should I trust Microsoft or Symantec about this?