Examine source code of BookmarksInTab

{
  "description": "Display bookmarks in new tab.",
  "manifest_version": 2,
  "name": "BookmarksInTab",
  "version": "1.0.8resigned1",
  "icons": {
    "16": "images/icon_16.png",
    "32": "images/icon.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_icon": "images/icon.png",
    "default_popup": "options.html"
  },
  "options_ui": {
    "page": "options.html"
  },
  "chrome_url_overrides": {
    "newtab": "newtab.html"
  },
  "content_security_policy": "script-src 'self'; object-src 'self'; img-src 'self' blob: data:",
  "permissions": [
    "<all_urls>",
    "bookmarks",
    "storage",
    "alarms",
    "contextMenus",
    "tabs"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{64661bf8-14af-4002-85ed-c019d5ae3a3c}"
    }
  }
}