fickle

Thanks for responding, but I'd already mentioned doing that in my original post and it not working. Whatever program I downloaded wasn't a clean version of the toolbar.

However, I've more or less solved it by uninstalling Firefox and deleting the profile folders, etc. that still linger on the computer, and then reinstalled it. I backed up my bookmarks prior to uninstalling. The annoying toolbar is gone and everything is fine now!