Examine source code of AutoFill Forms (WebExtension)

{
  "name": "AutoFill Forms",
  "description": "__MSG_description__",
  "default_locale": "en",
  "version": "0.4.9",
  "manifest_version": 3,
  "permissions": [
    "scripting",
    "storage",
    "activeTab",
    "notifications",
    "contextMenus"
  ],
  "optional_host_permissions": [
    "*://*/*"
  ],
  "action": {
    "default_popup": "/data/popup/index.html"
  },
  "background": {
    "service_worker": "bg/worker.js",
    "scripts": [
      "bg/defaults.js",
      "bg/utils.js",
      "bg/context.js",
      "bg/fill.js",
      "bg/worker.js"
    ]
  },
  "homepage_url": "https://webextension.org/listing/autofill-forms.html",
  "icons": {
    "16": "/data/icons/16.png",
    "32": "/data/icons/32.png",
    "48": "/data/icons/48.png",
    "64": "/data/icons/64.png",
    "128": "/data/icons/128.png",
    "256": "/data/icons/256.png",
    "512": "/data/icons/512.png"
  },
  "commands": {
    "_execute_action": {},
    "activate": {
      "suggested_key": {
        "default": "Ctrl+Shift+U"
      },
      "description": "Activate extension"
    }
  },
  "options_ui": {
    "page": "/data/options/index.html",
    "open_in_tab": true
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "jid1-jJjr0f2lg5yYtf2dD@jetpack",
      "strict_min_version": "128.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}