Examine source code of JsonViewerExtension

{
  "manifest_version": 3,
  "name": "JSON Query Tool",
  "version": "1.1.1",
  "description": "Robust JSON querying tool with large file support, interactive tree, and table views.",
  "browser_specific_settings": {
    "gecko": {
      "id": "jsonviewer@chirravuris.com",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "permissions": [
    "contextMenus",
    "tabs",
    "storage"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "icons": {
    "16": "icon-16.png",
    "32": "icon-32.png",
    "48": "icon-48.png",
    "64": "icon-64.png",
    "96": "icon-96.png",
    "128": "icon-128.png",
    "256": "icon-256.png",
    "512": "icon-512.png"
  },
  "action": {
    "default_title": "Open JSON Query Tool",
    "default_icon": {
      "16": "icon-16.png",
      "32": "icon-32.png",
      "48": "icon-48.png",
      "128": "icon-128.png"
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "type": "module"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_idle"
    }
  ]
}