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Install and Delete MIT Personal Certificate in Firefox

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Overview

Unlike other browsers Firefox is unable to utilize certificates installed by CertAid.

Above version 70

Adding personal certificate
  1. Navigate to https://ca.mit.edu/ca/
  2. Enter your Kerberos username and password, click Next.
    Result: You will be prompted to authenticate with Duo.

  3. Authenticate with Duo Authentication.
    Result: You will be brought to a page to generate a certificate for download.


  4. Input a one-time import password in order to download your personal certificate, click Next.
    Result: You will be prompted to save your certificate to a location of your choice.


  5. Save your personal certificate file to a suitable location.
    Result: Your personal certificate will be saved to that location.


  6. From the Menu icon, click on Options (Windows) or Preferences (macOS). Search for "certificates", click on View Certificates.
    Result: The Settings window will open, and then the Certificate Manager will open.




  7. From the Certificate Manager, click on the Your Certificates tab, click on Import.
    Result: You will be brought to a window to select where your certificate will be saved.


  8. Navigate to the location of your downloaded personal certificate, click on Open.
    Result: You will be prompted to enter a one-time password.


  9. Input the one-time password from step 3, click on Ok.
    Result: You should now see your personal certificate listed.

Removing personal certificate
  1. From the Menu icon, click on Options (Windows) or Preferences (macOS)
  2. Search for "certificates", click on View Certificates
  3. From the Certificate Manager, click on the Your Certificates tab for Personal Certificates and Authorities for CA
  4. Navigate to the certificate, click on Delete

Below Version 70

Adding personal certificate
  1. Navigate to https://ca.mit.edu/ca/.
    Result: You will be prompted to enter your Kerberos username and password.


  2. Enter your Kerberos username and password, click Next.
    Result: You will be prompted to authenticate with Duo.

  3. Authenticate with Duo Authentication.
    Result: You will be brought to a page to generate a private key.

  4. Leave default options for Key Size and Certificate Life, click on Next.
    Result: You will receive an alert stating your certificate has been installed.

  • Note: It is not necessary to backup your personal certificate. If you do wish to backup your personal certificates locally, from the menu bar go to Preferences/Options > Advanced > View Certificates, click Backup All, and follow the instructions.
Removing personal certificate
  1. From the Menu icon, click on Preferences/Options
  2. Search for "certificates", click on View Certificates
  3. From the Certificate Manager, click on the Your Certificates tab for Personal Certificates and Authorities for CA
  4. Navigate to the certificate, click on Delete

After you're done installing (and possibly deleting) your personal certificate, please follow the directions in Install the MIT CA (Certificate Authority) in Firefox to install a CA for Firefox as well. While a personal certificate verifies you are who you say you are to web servers, a CA is required to verify the authenticity of web servers to your browser. Both are important for secure connections.

See Also

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IS&T Contributions

Documentation and information provided by IS&T staff members


Last Modified:

August 04, 2020

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