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Install unclutter to be able to hide a cursor:
apt-get install unclutter
open global autostart file
nano /etc/xdg/lxsession/LXDE-pi/autostart
and add the following lines
@unclutter -idle 0 @chromium-browser http://localhost:5000 --fullscreen-mode --kiosk
this will open google in fullscreen on boot and after login(if login is enabled)