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How do I fix the error message "SSL_ERROR_BAD_CERT_ALERT." Prior we had the ability to add exceptions not the advanced button is not available.

I am connection to a network device. I was previously able to add an exception via a button on the page with the error. Since the last update I have lost the ability to add this exception. My only choice is to not use Firefox.

I am connection to a network device. I was previously able to add an exception via a button on the page with the error. Since the last update I have lost the ability to add this exception. My only choice is to not use Firefox.

Wšykne wótegrona (2)

Hello,

The issue could be with your antivirus software SSL protocol filtering, therefore you should follow the instructions provided in this article .

If the issue persists, please feel free to update us with your situation so that we can further assist you.

Hi csamuel61, could you copy/paste the error page text into a reply? Usually you can create an exception unless the site previously instructed Firefox that it requires HSTS (strict transport security).