Examine source code of Nova Bookshelf

{
  "manifest_version": 2,
  "name": "Nova Bookshelf",
  "description": "Your personal librarian, right here in your browser!",
  "version": "1.0",
  "permissions": [
    "bookmarks"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "browser_action": {
    "default_popup": "popup.html"
  },
  "options_ui": {
    "page": "options.html",
    "chrome_style": true
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{aa2b7eb1-3ff5-491d-9af6-87572fad6faa}"
    }
  }
}