Environment
Access Manager 4.0 SP1
After upgrading to the latest version of Firefox, the web browser gets the error
ssl_error_weak_server_ephemeral_dh_key
when accessing web sites protected by Access Manager
After upgrading to the latest version of Firefox, the web browser gets the error
ssl_error_weak_server_ephemeral_dh_key
when accessing web sites protected by Access Manager
Situation
Weaker Diffie-Hellman ciphers that are no longer considered secure were supported by earlier versions of Access Manager for SSL/TLS communications.
Resolution
It is recommended that these ciphers be disabled, and the easiest way to
do this is to apply SP2 to Access Manager 4.0, or upgrade to Access
Manager 4.1 or later.