Problem : Some websites with security certificates doesn't open and shows error like " MOZILLA_PKIX_ERROR_KEY_PINNING_FAILURE", in that case you can fix it and able to browse by below fix. Solution : Open firefox and go to about:config in address bar search and change value of " security.cert_pinning.enforcement_level " 1 to 0 clear cache and cookies ... Continue reading "Mozilla Firefox : MOZILLA PKIX ERROR KEY PINNING FAILURE fix"
