How to Install Securly's SSL Certificate in Firefox on Windows


Firefox does not trust the Windows system certificate store. For non-domain joined devices, Firefox will need Securly's SSL certificate installed manually to improve the user's browsing experience. Without the certificate, the user will be prompted with warnings about insecure sites and their connection not being private. Below are the steps to install Securly's SSL Decryption certificate in Firefox manually. 

  1. Download Securly's SSL decryption certificate.
  2. Open Firefox.
  3. Click the hamburger menu at the top-right of the screen and select "Options"
  4. Select "Privacy & Security"
  5. Scroll to the bottom of the page under "Security" and "Certificates" and select "View Certificates"
  6. In the "Certificate Manager" modal, ensure the "Authorities" section is selected. Then, click "Import".
  7. This will bring up a file selector where you can select the certificate you downloaded previously. Select the certificate and click "Open"
  8. It should result in a successful message. 


Later this Fall, Securly's current SSL Certificate will expire. We have provisioned a brand new SSL Certificate available below which expires in 2034. While to get up and running today you only need to have the original SSL Certificate Installed, we recommend that you install both SSL Certificates at the same time to ensure when the original expires, you are at no loss of service.

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