Maybe -- just for the heck of it, copy the AOL and Mozilla folders in the "startup" folder that you just discovered to the desktop so that you have more than one backup.
Now, empty the recycle bin and send the two that are in the startup folder to the recycle bin. The startup folder should now be empty.
You can also ensure you have a system restore point just for a third method of recovery.
Now after you have emptied that startup folder, reboot and see what works and what breaks.
If you can't connect through AOL, restore the AOL folder first and test.