If you're still with me, I highly recommend resetting your browser to its default settings ..! Follow the link:
Good news! I finally came to my senses and moved over to Chrome. After another attempt to open different pages and getting another Authentication box. Instead of restarting the PC I was able to access the Task manager and uninstall FF. I already had Chrome installed and imported my FF favs. I now am getting no re-directions or Authentication boxes! I wanted to thank you for all of your time and patience! You should be able to close this one out!