i see the alfresco document and i try the simple scenario i configure alfresco.global.properties as document say and put it in /tomcat/shared/clsses/ and configure share-config-customer and put it in /tomcat/shared/classes/alfresco/web-extension/
and add the firefox adds on "modify http headers" and add header name = ssouserheader and its value admin and start up tomcat with alfresco & share and SSO doesn't happen