This page will guide you through installing and renewing certificates in Mozilla Firefox.
Note: IS&T strongly advises that you set a master password to protect your certificates and any stored passwords. See: How do I set a master password in Firefox?
Click on the thumbnails to view the full size images.
- Navigate, in Firefox, to http://ca.mit.edu.
- Enter your Kerberos username and password, and your MIT identification number, and click Next.
- On the page Generate a Private Key, leave the Key Size at the highest grade for your browser. The Certificate Lifetime gives the default number of days until this personal certificate expires. Click Next to accept the defaults.
Result: The message "Key Generation in progress ..." appears.
- An Alert message confirms that the certificate has been installed, and instructs the user to backup the personal certificate.
Note: It is not necessary to backup your personal certificate. If you do wish to backup your personal certificates locally, in Firefox go to Preferences/Options > Advanced > View Certificates, click Backup All, and follow the instructions.
- Your certificate is now installed.
- If this is your first time installing certs on Firefox, you also need to install the MIT Certificate Authority. The web installer will prompt you to install it by clicking a link.
From here, choose MIT to "trust this CA to identify websites"
And you are good to go.
- Open Firefox Preferences
- On Windows: Tools > Options (or Firefox > Options)
- On Linux: Edit > Preferences
- On Mac OS X: Firefox > Preferences
- Select the Advanced pane. Then select the Encryption tab.
- Click View Certificates.
- Select the expired or duplicate certificate and click the Delete button. You will be prompted if you want to delete the certificate. Click OK to continue.
- Close and re-open Firefox, and confirm that you have one, non-expired certificate.