Examine source code of AG Extension

{

  "manifest_version": 2,
  "name": "AG Extension",
  "version": "1.0",
 
  "description": "Decodifica las direcciones ofuscadas de Google.",

  "icons": {
    "48": "icons/Etruscan48png.png"
  },

  "content_scripts": [
    {
      // Solo puede haber un matches
      "matches": ["https://www.google.com/search?*"],          
      "js": ["ag.js"]        
    }
  ]

}