HOW TO DELETE ALL SSL CERTIFICATES in FIREFOX (Rename) or delete the following in Firefox Profile Folder secmod.db (secmod.db.old) and cert8.db (cert8.db.old) cert_override.txt (cert_override.txt.old)  –>  If you have a file “cert_override.txt” The file are in Profile folder on MAC OS X -Mountain Lion is usr/library/application support/firefox click to know more about Profiles in Firefox for WIN click here ( Edit […]