Examine source code of Auto Incognito

{
  "manifest_version": 2,
  "name": "Auto Incognito",
  "description": "Automatically close tabs and re-open then in Incognito mode",
  "permissions": [
    "webNavigation",
    "tabs",
    "storage"
  ],
  "version": "0.2.0",
  "background": {
    "scripts": [
      "/background.js"
    ]
  },
  "options_ui": {
    "page": "/options.html",
    "open_in_tab": true
  },
  "browser_specific_settings": {
    "gecko": {
      "strict_min_version": "103.0",
      "id": "{9816e181-5e8e-4a98-82c1-2fdd248f486d}"
    }
  }
}