There was an update to the change in certs in version 31[https://blog.mozilla.org/security/2014/04/24/exciting-updates-to-certificate-verification-in-gecko/ blog post for more information] There have also been some big security updates that have taken place in version 32. [https://www.mozilla.org/security/known-vulnerabilities/firefox.html] You may also be affected by the self served security certs if you have any sites with this type of cert. [https://bugzilla.mozilla.org/show_bug.cgi?id=1042889 Bug 1042889] also see [[Add Security Exception]]

You can try to copy the cert8.db file from the old folder to the currently used profile. *https://support.mozilla.org/kb/Recovering+important+data+from+an+old+profile