Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Unable to view invalid certificate

  • 3 replies
  • 1 has this problem
  • 2 views
  • Last reply by Shadow110

more options

Usually, I'm able to view certificate info by:

1. Going to «View Page Info» 2. Selecting the Security tab 3. Clicking a «View Certificate» button

In my current version of Firefox, the «View Certificate» button does not show when the certificate is deemed invalid (SEC_ERROR_UNKNOWN_ISSUER). Previous versions would show the certificate here, even invalid ones. Is this a bug?

Usually, I'm able to view certificate info by: 1. Going to «View Page Info» 2. Selecting the Security tab 3. Clicking a «View Certificate» button In my current version of Firefox, the «View Certificate» button does not show when the certificate is deemed invalid (SEC_ERROR_UNKNOWN_ISSUER). Previous versions would show the certificate here, even invalid ones. Is this a bug?

All Replies (3)

more options

You can open the Certificate Manager and go to the Servers tab. The Servers tab has an "Add Exception" to open the "Add Security Exception" window.

  • chrome://pippki/content/exceptionDialog.xul

You can type/paste the domain in the location field on this page and click "Get Certificate" to retrieve the certificate and click the "View" button to inspect the certificate.

more options

Ah, well. There's already other (and better) utilities to fetch and view certificates from any odd host.

I was mainly missing a simple way to look up a certificate (and its issuer chain) from a host that I'm already trying to connect to…

more options