Troubleshoot certificate issues with Mozilla Firefox
How to change the Firefox OCSP settings.
When you access an application that uses custom domains with the Mozilla Firefox browser, your certificate may appear valid but has actually been revoked by your domain provider. This occurs because Firefox uses Online Certificate Status Protocol (OSCP) by default and will render a set of errors when attempting to access the application.
Note: This issue does not apply when you access an application that uses custom domains with the Google Chrome browser. Chrome does not use the OCSP to check if an intermediate certificate has been revoked.
- Open a new Mozilla Firefox browser window.
- Navigate to .
- Deselect Query OCSP responder servers to confirm the current validity of certificates.
- Close the preferences menu.
- Try to access the application again. See Log in and access applications in the Login Portal.
You should now be able to access the application with the Mozilla Firefox browser.
What you should see
If you need to continue troubleshooting, see Troubleshooting overview and tips.