Firefox: Accessing QNAP Web Administration Application at 11:19

When trying to access the QNAP's Web Administration Application on port 6000 Firefox cancels your request stating that the port "is normally used for purposes other than Web browsing".

To be able to access this application you must add an exception to this port following these steps:

1. Start your Firefox browser if it is not already started.
2. In the address bar type the following address: about:config
3. Firefox will alert you that changes made here are very sensible, accept the advice and carry on
4. A list of "preferences" will be displayed with their Preference Name, Status, Type, Value in the browser window. With the mouse over any of the preferences click with your right mouse button to open the context menu.
5. Select New and String to create a new String preference.
6. In the name put: network.security.ports.banned.override
   
7. In the value put the port you're trying to access: 6000

That's it, you can now access your QNAP's Administration Application