Examine source code of Brainrot Vaccine

{
  "manifest_version": 3,
  "name": "Brainrot Vaccine",
  "version": "1.4.0",
  "description": "Extension created to prevent yourself to access vicious websites that is injuring our attention and our brain.",
  "browser_specific_settings": {
    "gecko": {
      "id": "gsantos15569.dev@gmail.com"
    }
  },
  "background": {
    "scripts": [
      "assets/service-worker.js"
    ],
    "service_worker": "assets/service-worker.js",
    "type": "module"
  },
  "action": {
    "default_popup": "index.html",
    "default_icon": "gubgubsquare.png"
  },
  "icons": {
    "16": "gubgubsquare.png",
    "48": "gubgubsquare.png",
    "128": "gubgubsquare.png"
  },
  "permissions": [
    "webNavigation",
    "storage"
  ],
  "host_permissions": [
    "<all_urls>"
  ]
}