How to remove "security exception" for a certificate-expired site
When I bring up the certificate-expired URL
<https://oaklandwiki.org/>
in Firefox 149.0 on Windows 11 I am told "You have added a security exception for this site." But not how to remove it. How do I do that? I did not see anything in Settings or about:config; did I miss it?
தீர்வு தேர்ந்தெடுக்கப்பட்டது
Go to Tools -> Settings -> Privacy & Security. Scroll down to the Certificates section and click the Manage certificates button. Click the Servers Tab/Section. The one you want to remove should be in this list. Highlight it and a Remove button should appear.
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தீர்வு தேர்ந்தெடுக்கப்பட்டது
Go to Tools -> Settings -> Privacy & Security. Scroll down to the Certificates section and click the Manage certificates button. Click the Servers Tab/Section. The one you want to remove should be in this list. Highlight it and a Remove button should appear.
Yes, it looks like that did it; I get the warning message back. Thanks!
Hello
To complement Troubleshoot time-related errors on secure websites https://support.mozilla.org/en-US/kb/troubleshoot-time-errors-secure-websites
Another way of doing it: https://www.youtube.com/watch?v=ticCp-mY5_4
Other information Troubleshoot security error codes on secure websites https://support.mozilla.org/en-US/kb/error-codes-secure-websites
If the error occurs on one site only, test it using SSL Labs https://www.ssllabs.com/ssltest
https://www.ssllabs.com/ssltest/analyze.html?d=oaklandwiki.org, analyze at instant.
Valid until Sun, 04 Jan 2026 23:59:59 UTC (expired 2 months and 24 days ago) EXPIRED
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