Last night, right before bed, Firefox downloaded and installed an update. After that, it was completely unable to connect to the internet. I worked around the issue as much as I could and knew I was going to have to do something I'd regret. The thought of using IE8 at home and suckling from the Microsoft Teat again was a bitter pill to swallow. I'd just downloaded the installation file for IE8 when inspiration struck. I simply uninstalled and reinstalled Firefox. Everything is back to normal.
Just about time to see Los Straitjackets and Big Sandy. I hope Beatle Bob doesn't ruin this for me.