Examine source code of Under New Management

{
  "name": "Under New Management",
  "version": "0.0.2",
  "description": "Detect when your installed browser extensions have changed owners.",
  "manifest_version": 2,
  "background": {
    "scripts": [
      "background.0a29de02.js"
    ]
  },
  "browser_action": {
    "default_popup": "popup.6ae1885c.html"
  },
  "permissions": [
    "alarms",
    "management",
    "storage"
  ],
  "icons": {
    "16": "logo16.888eea5b.png",
    "48": "logo48.c5df51da.png",
    "128": "logo128.cc90af33.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{3bce631f-02eb-4232-a857-4e084917b7a2}"
    }
  }
}