Comment 17 for bug 332176

I have seen, txs to one of my friends, that Apple Mac OSX includes this feature and this is not only related to the browser (Safari) but to the whole systems so also the email client can use it.
Another security feature that Mac OSX includes in Safari is the ability to warn the user if at least one of the parent certificates has not OCSP extension. This is for me another mandatory option for ssl connections as the SSL certificates of the site you visit can be valid (that is OCSP server of the parent certification authority replies that the certificate is valid) but if the parent certificate was revoked you cannot never know this if your browser doesn't follow up OCSP extensions in the certification authority certificates tree and it doesn't warn the user if it doesn't find an OCSP extension.