This extension adds a full screen button to the maps that created with Google Maps API.This extension adds a full screen button to the maps that created with Google Maps API and OpenStreetMap.
(Some times it works, but some times it doesn't work.)
The barcode will appear when you click a marker on the map.
You can read it with a barcode reader application.
Add printable function when you open the full screen map.
* Only the full screen button function is available for OpenStreetMap.