Examine source code of Navigation Log

{
  "manifest_version": 2,
  "name": "Navigation Log",
  "version": "0.7.0",
  "permissions": [
    "webNavigation",
    "tabs",
    "nativeMessaging",
    "storage"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "applications": {
    "gecko": {
      "id": "navigation_log@prekageo",
      "strict_min_version": "54.0"
    }
  }
}