Made the same thread on this forum, the thread is here: http://forums.mozillazine.org/viewtopic.php?f=38&t=3072671&p=14888449#p14888449 Basically tried everything that I wrote there, tried creating a new profile, same results Besides, every time I refreshed Firefox, I got the SEC_ERROR_UNKNOWN_ISSUER error that I solved by enabling the security.enterprise_roots.enabled option Thank you