Installing the Fiddler Root CA in Firefox


Product Version 1.0.0 and above
OS Linux, macOS, Windows


How can I manually install the Fiddler's Certificate Authority (CA)in Firefox?


  1. Export the Fiddler CA to your Desktop folder through the options in Settings > HTTPS > Advanced.

  2. Open Firefox.

  3. Go to Preferences > Privacy & Security.

  4. Click the View Certificates button to open the Firefox's Certificate Manager.

  5. Within the Certificate Manager, select the Authorities tab.

  6. Click the Import... button and choose the Fiddler_Root_Certificate_Authority.crt file from your Desktop folder.

  7. Select the Trust this CA to identify websites. checkbox and click OK.

The Fiddler CA is now installed.