Specifying the Warning Message Displayed When Leaving Secured Web Pages
You can set whether to display a warning message when you leave the secured Web page.
1.
Press 
(Settings/Registration).
(Settings/Registration).2.
Press [Function Settings] → [Web Access] → [Settings].
3.
Press [Security] → select [On] or [Off] for [Displ. Warning when Leaving Secured Page] → [OK].
