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manifest.json
{
  "background": {
    "service_worker": "background.js"
  },
  "content_scripts": [
    {
      "all_frames": true,
      "js": [
        "content.js"
      ],
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "run_at": "document_idle"
    }
  ],
  "default_locale": "en",
  "name": "__MSG_appName__",
  "description": "__MSG_appDesc__",
  "icons": {
    "128": "icon128.png"
  },
  "manifest_version": 3,
  "version": "2.1",
  "update_url": "https://edge.microsoft.com/extensionwebstorebase/v1/crx"
}