Kiosk Pi based on https://blogs.wcode.org/2013/09/howto-boot-your-raspberry-pi-into-a-fullscreen-browser-kiosk/

rc.local

# Append to /etc/rc.local

if [ -f /boot/xinitrc ]; then
  ln -fs /boot/xinitrc /home/pi/.xinitrc;
  su - pi -c 'startx' &
fi

xinitrc

#!/bin/sh
# /boot/xinitrc

while true; do
  # Clean up previously running apps, gracefully at first then harshly
  killall -TERM chromium-browser 2>/dev/null;
  killall -TERM matchbox-window-manager 2>/dev/null;
  sleep 2;
  killall -9 chromium-browser 2>/dev/null;
  killall -9 matchbox-window-manager 2>/dev/null;

  # Clean out existing profile information
  # rm -rf /home/pi/.cache;
  # rm -rf /home/pi/.config;
  # rm -rf /home/pi/.pki;

  # Generate the bare minimum to keep Chromium happy!
  # mkdir -p /home/pi/.config/chromium/Default
  # sqlite3 /home/pi/.config/chromium/Default/Web\ Data "CREATE TABLE meta(key LONGVARCHAR NOT NULL UNIQUE PRIMARY KEY, value LONGVARCHAR); INSERT INTO meta VALUES('version','46'); CREATE TABLE keywords (foo INTEGER);";

  # Disable DPMS / Screen blanking
  xset -dpms
  xset s off

  # Reset the framebuffer's colour-depth
  fbset -depth $( cat /sys/module/*fb*/parameters/fbdepth );

  # Hide the cursor (move it to the bottom-right, comment out if you want mouse interaction)
  # xwit -root -warp $( cat /sys/module/*fb*/parameters/fbwidth ) $( cat /sys/module/*fb*/parameters/fbheight )

  # Start the window manager (remove "-use_cursor no" if you actually want mouse interaction)
  # matchbox-window-manager -use_titlebar no -use_cursor no &
  matchbox-window-manager -use_titlebar no &

  # Start the browser (See http://peter.sh/experiments/chromium-command-line-switches/)
  chromium-browser  --app=http://www.bbc.co.uk/
done;

First run:

$ sudo apt-get update
$ sudo apt-get dist-upgrade
$ sudo apt-get install matchbox chromium-browser x11-xserver-utils ttf-mscorefonts-installer xwit sqlite3 libnss3
$ sudo apt-get autoremove