This handy image lets you boot your Raspberry Pi to a webpage of your choice.  It can also scroll through tabs.

I had a problem with the screen going blank and not showing anything.  I simply reinstalled Chromium like so:
sudo apt-get purge chromium-browser

Once that was done I reinstalled and rebooted:
sudo apt-get install chromium-browser

If you still have trouble I found an article to try Midori but I did not have success:

sudo apt-get purge midori

nano ~/scripts/run_onepageos

xset s off         # don't activate screensaver
xset -dpms         # disable DPMS (Energy Star) features.
xset s noblank     # don't blank the video device

matchbox-window-manager &
x11vnc -many -rfbauth /home/pi/.vnc/passwd &
while true
    if [ $(curl -sL -w "%{http_code}\\n" "http://localhost/FullPageDashboard" -o /dev/null) == "200" ]; then
      (sleep 15 ; /home/pi/scripts/fullscreen) &
      xdotool mousemove 9000 9000
      midori -e Fullscreen -a $(head -n 1 /boot/fullpageos.txt)
    sleep 1