Thanks thats fast. It works now but only after I deleted the earlier certs from /opt/var/cache/pixelserv, so take note of this if anyone is still having the errors.
Please generate the certs with unique serial number as Firefox is rather strict and will cough out this error:
Secure Connection Failed
An error occurred during a connection to doubleclick.com. You have received an invalid certificate. Please contact the server administrator or email...