“Remember” in the log-in page can be disabled.  Disabling “Remember Me” forces a user to always enter his user and password and adds a layer of security to the system.  To disable “Remember” Me, you need to login as System, then open the “System Configurator” window and change the value of the “ZK_LOGIN_ALLOW_REMEMBER_ME” to ‘N’. See below:

If you want to enable “Remember Me”, you just need to change th Configured Value back to ‘Y’. To enable saving ‘Remember Me’ in Chrome, use the ZK_LOGIN ALLOW_CHROME_SAVE_PASSWORd parameter. 

See https://groups.google.com/forum/#!topic/idempiere/OK2r7DDaLEU for more details.