How-to: Fix Untrusted Connections in Firefox

Problem with Firefox : Untrusted Connection

Deleting Cert8.db

1. Open your profile folder by going to the top of the Firefox window, click on the Firefox button, choose the ‘Help’ menu and then ‘Troubleshooting Information’.
2. In ‘Application Basics’, select ‘Show Folder’ to open a new window listing your profile files.
3. At the top of the Firefox window, click on the Firefox button and select ‘Exit’ to close the browser. The profile window remains open.
4. Click on the file named ‘cert8.db’.
5. Press ‘Delete’.
6. Restart Firefox.

A new cert8.db will be created when you restart Firefox. This is normal.