Examine source code of XBurster

{
  "description": "Firefox dir buster",
  "manifest_version": 2,
  "name": "XBurster",
  "version": "1.2resigned1",
  "permissions": [
    "<all_urls>",
    "tabs"
  ],
  "background": {
    "scripts": [
      "jquery.js",
      "x.js"
    ]
  },
  "browser_action": {
    "default_icon": {
      "16": "favicon-256.png",
      "32": "favicon-256.png"
    },
    "default_title": "XBurster",
    "default_popup": "popup/choose.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{4dfaf85c-7a21-4049-8111-06c8ee82eb22}"
    }
  }
}