After deploying your federation server, configure automatic logon settings to allow end users to log on to the End User Console automatically without providing their domain user names and passwords.
Type about:config in the address bar.
Double-click the search result and type your federation server address, for example, https://win-6tt7gs6he12.testdomain.com.
Go to Tools > Internet Options and click Security.
Click Trust Sites, click Sites, and then add your federation server address to the trust sites.