Capture HTTPS traffic from Firefox

Configure Fiddler Classic

  1. Click Tools > Options.

  2. Click the HTTPS tab. Ensure the Decrypt HTTPS traffic checkbox is checked.

  3. Click the Export Fiddler Root Certificate to Desktop button.

    Export Root Certificate to Desktop

Configure Firefox

  • If FiddlerHook is enabled, in Firefox click Tools > Monitor with Fiddler > Trust FiddlerRoot certificate....

FiddlerHook Menu Option

  • Or, import the certificate manually:

    1. Click Tools > Options... > Advanced > Encryption > View Certificates > Authorities > Import.

      Import Certificate

    2. Select the FiddlerRoot.cer file from your desktop.

    3. Click the checkbox next to Trust this CA to identify web sites.

    Trust this CA to identify web sites

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