Auto-re-routing

[Braden]

When browsing the Guild, Firefox wishes to execute scripts from totalwar.org, google.com, adbureau.net, quantserve.com and atomicgamer.com. I allowed the first two, blocked the rest (don't know the last one, but the other two are ad sites). Back on Windows machines, I've had Avast light up while browsing quantserve - that could very well be the problem.

Done a little research and I think you may have found the issues here...but I'll still scan my PC, always good practice.

[Viking]

So much for the 'checks OS' theory.

Spoiler Alert, click show to read: 

[Sevis]

So much for the 'checks OS' theory.

Spoiler Alert, click show to read: 

Well, that is Windows, judging by the look of it. Might not check OS version number, simply the name.

EDIT: Aha! Instead of giving a pop-up with the choice of continuing the 'repair' or aborting, it suggests you download something... Interesting, let me give that site a go.

EDIT2: Went to the page manually. No matter what you click, it gets to the point where it offers you to repair. If you press the screen anywhere at that time, it'll try to download an "install.exe" - against which Firefox is safe, but I'm not sure if IE is. Until that comes up, there was no sign of any intrusion.