Examine source code of Nette debug mode

{
  "manifest_version": 2,
  "name": "Nette debug mode",
  "version": "0.3resigned1",
  "description": "Nette framework debug mode",
  "icons": {
    "200": "icons/icon.png"
  },
  "permissions": [
    "<all_urls>",
    "tabs",
    "cookies",
    "storage"
  ],
  "browser_action": {
    "default_icon": "icons/icon.png",
    "default_title": "DebugMode",
    "default_popup": "popup.html"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.mozilla.org/*"
      ],
      "js": [
        "debugmode.js"
      ]
    }
  ],
  "applications": {
    "gecko": {
      "id": "honzanovacek@zoho.com"
    }
  }
}