Examine source code of PDF Wise

{
  "manifest_version": 2,
  "name": "__MSG_appName__",
  "version": "4.2resigned1",
  "description": "__MSG_appDesc__",
  "default_locale": "en",
  "browser_action": {
    "default_icon": "icon0.gif"
  },
  "background": {
    "scripts": [
      "event.js"
    ],
    "persistent": false
  },
  "permissions": [
    "tabs",
    "<all_urls>"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{4dc0db93-2f11-4dba-ae6a-c82e57a10599}"
    }
  }
}