Examine source code of Lakhtocrore

{
  "manifest_version": 2,
  "name": "Lakhtocrore",
  "version": "0.3resigned1",
  "description": "Converts any amount selected into Indian Currency in words",
  "permissions": [
    "activeTab",
    "contextMenus",
    "notifications"
  ],
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "Lakhtocrore.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{2989697b-c924-43b6-b329-011e72767d42}"
    }
  }
}