Will not connect to https sites as of 4 days ago. (Error code: sec_error_unknown_issuer)
"You have asked Firefox to connect securely to www.google.com, but we can't confirm that your connection is secure." Have tried all the listed fixes, uninstall/reinstall, malware/virus scan, etc. NOTHING WORKS!!!
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Hello,
Please see the article "This Connection is Untrusted" error message appears - What to do. It could be a corrupt cert8.db file, please follow the steps in https://support.mozilla.org/en-US/kb/connection-untrusted-error-message#w_the-certificate-is-not-trusted-because-the-issuer-certificate-is-unknown
You may also want to check your antivirus/firewall settings. If you are using Avast, the latest Firefox release (version 33.1 released yesterday) fixes an issue with HTTPS Scanning. Your user agent shows 33.0.3 - you can update by going to:
- Help (or
> 
) > About Firefox
Or download a new copy at:
I've tried all the listed fixes, which includes the one you posted. NONE of them have worked. I'm also using Kapersky and that doesn't seem to be the issue. Thx though.
See if this post helps: