Examine source code of Amazon Biblio JP

{
  "name": "Amazon Biblio JP",
  "description": "Amazon.co.jp 商品ページの書名の上に書誌情報を表示します。",
  "version": "1.0.36resigned1",
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "icons": {
    "128": "icon128.png"
  },
  "manifest_version": 2,
  "content_scripts": [
    {
      "matches": [
        "http://www.amazon.co.jp/*",
        "https://www.amazon.co.jp/*",
        "http://amazon.co.jp/*",
        "https://amazon.co.jp/*"
      ],
      "css": [
        "amazon_biblio.user.css"
      ],
      "js": [
        "jquery-3.0.0.min.js",
        "amazon_biblio.user.js"
      ]
    }
  ],
  "homepage_url": "http://booksbar.jp/",
  "permissions": [
    "http://www.amazon.co.jp/",
    "https://www.amazon.co.jp/",
    "http://api.bitly.com/",
    "https://api.bitly.com/",
    "https://api-ssl.bitly.com/"
  ],
  "web_accessible_resources": [
    "images/bookoffonline.png",
    "images/calil.png",
    "images/close.png",
    "images/fb16.png",
    "images/ndl.png",
    "images/twitter20.png",
    "images/webcatplus.png"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{27e9a84d-c070-42dc-b9b6-5561c0fa5f13}"
    }
  }
}