The browser offers a DBus interface, allowing to control a few things.
The DBus interface listens signals sent on the system bus on the object /com/linutop/WebKiosk. The messages are:
dbus-send can be used to send the signals:
# stop the current session dbus-send --system /com/linutop/WebKiosk com.linutop.WebKiosk.Signal.StopSession # add 2 minutes to the timer dbus-send --system /com/linutop/WebKiosk com.linutop.WebKiosk.Signal.AddTime uint32:120