Clearing Your Cache/Cookies
Many issue can be alleviated by clearing your browser's Cache and cookies. Before you clear your cache and cookies for the first time, close all of your browsers, then open up a new one.
For Firefox users:
1. Click on “Tools” at the top of the browser window
2. Select “Clear Private Data” from the drop-down menu
3. Put a check mark next to “Cache” and “Cookies”
4. Click on the “Clear Private Data Now” button