Firefox Error "Warning: Potential Security Risk Ahead" On All Sites

This is designed to only address an issue in Firefox where all websites will display a security warning, even when connecting to secure sites. If Firefox is only displaying this warning for a specific site, please check that you are connecting to a legitimate website.

1. In the Firefox address bar type about:config and press Enter.
2. A warning page may appear. Click Accept the Risk and Continue.
3. Search for and change the following settings:
   1. security.certerrors.permanentOverride = false
   2. security.enterprise_roots.enabled = true
   3. network.stricttransportsecurity.preloadlist = false
   4. (Optional - may not be present on your device) security.insecure_field_warning.contextual.enabled = false
4. Restart Firefox to apply changes.