Examine source code of Website Informer Addon

{
  "name": "Website Informer Addon",
  "version": "3.8.2resigned1",
  "manifest_version": 2,
  "background": {
    "scripts": [
      "static/js/jquery.js",
      "static/js/common.js",
      "static/js/background.js"
    ]
  },
  "description": "Website Informer is an ultimate tool to evaluate authority and popularity of websites you are visiting.",
  "browser_action": {
    "default_icon": "static/img/i128.png",
    "default_title": "Page Info",
    "default_popup": "popup.html"
  },
  "icons": {
    "128": "static/img/i128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "https://*/*"
      ],
      "include_globs": [
        "https://google.*",
        "https://www.google.*"
      ],
      "js": [
        "static/js/jquery.js",
        "static/js/content.js"
      ],
      "run_at": "document_start"
    }
  ],
  "web_accessible_resources": [
    "static/img/icon.gif",
    "popup.html"
  ],
  "permissions": [
    "tabs",
    "storage",
    "http://*/*",
    "https://*/*"
  ],
  "applications": {
    "gecko": {
      "id": "page-informer@web.informer.com",
      "strict_min_version": "50.0"
    }
  }
}