Examine source code of Shuffle Tabs

{
  "manifest_version": 2,
  "name": "Shuffle Tabs",
  "version": "1.1resigned1",
  "description": "Rearrange tabs, in random order.",
  "browser_action": {
    "browser_style": false,
    "default_icon": "icons/shuffle-icon-32.png",
    "default_title": "Shuffle Tabs"
  },
  "background": {
    "scripts": [
      "shuffle_tabs.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{1525403c-2beb-4b9f-ae7f-12f2b02ecacc}"
    }
  }
}