Firefox won't open FaceBook on my Mac.
This is the message I get (which usually offers to add a security exception, but not in this case) when I try to open FaceBook in Firefox.
www.facebook.com uses an invalid security certificate. The certificate is not trusted because the issuer certificate is unknown. (Error code: sec_error_unknown_issuer)
Also, GUI's aren't present, just hyperlinks using Firefox to browse Firefox's help page.
All Replies (1)
HI DrewPri, In your browser open up about:permissions in a new tab. Search for facebook and click "Forget this site". This will remove all the cached pages, cookies and certs for facebook locally. Restarting Firefox and logging in will request a new certificate.