S-static ak facebook com:443 uses an invalid security certificate

This Connection is Untrusted


You have asked Firefox to connect
securely to apps.facebook.com, but we can't confirm that your connection is secure.
Normally, when you try to connect securely,
sites will present trusted identification to prove that you are
going to the right place. However, this site's identity can't be verified.
apps.facebook.com uses an invalid security certificate.

The certificate is not trusted because the issuer certificate has expired.
The certificate will not be valid until 1/12/2010 4:00 PM. The current time is 1/2/2005 11:12 PM.

(Error code: sec_error_expired_issuer_certificate)

My Email is soniagiordano2002@hotmail.com

Do not know how to solve the problem

thank you very much