Uninstall Excelleris Client Certificate on a Windows computer using Firefox:

  1. Open Firefox.
  2. Click on the Menu icon in the upper right corner, click Options.
  3. Click Advanced, then click the Certificates tab.
  4. Click View Certificates.
  5. In the Certificate Manager dialogue box, click Your Certificates.
  6. Select the certificate that you wish to uninstall, click Delete
  7. Click OK when prompted to confirm to delete the certificate.