incompatible module "vulnerability Protection" with firefox 22.0

Hello,

I just get an upgrade for my firefox , to 22.0

now my browser tell me that the symantec module is uncompatible and desactivate ; not good... :-(

I'm with Symantec Endpoint Protection 12.1.2015.2015 , do I need to upgrade to the last version ?

because I've just upgraded all my clients to this version , bad news if I must upgrade all my clients each month due to an upgarde of my browsers....

Thanking you

Stephane