No I haven't been. but I re-applied everything on Halcyon's thread and tested it out this morning on IE/Firefox/Chrome and got the same result as I did with Chrome; Re-authenticate.
With Firefox I got this little pop-up when the game was loading:
I don't dabble with Firefox much, so I'm not sure if a plug-in I have is causing the issue??
I'm really sorry for having so many issues with my computer and everything, guys! But I'd like to take the chance to thank you for helping me this far (: It means a lot.