Examine source code of Autofill forms

{
  "manifest_version": 3,
  "name": "Autofill forms",
  "version": "0.1.0",
  "description": "Autofill your forms",
  "permissions": [
    "storage",
    "activeTab",
    "scripting"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "action": {
    "default_popup": "popup.html"
  },
  "options_page": "options.html",
  "background": {
    "service_worker": "background.js",
    "scripts": [
      "background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "autofill-forms@yourname.example",
      "data_collection_permissions": {
        "required": [
          "websiteContent"
        ]
      }
    }
  }
}