Examine source code of Autentique Link

{
  "name": "Autentique Link",
  "description": "Open a link in Incognito mode with autentique",
  "manifest_version": 2,
  "version": "1.1.1",
  "icons": {
    "128": "icon.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "app.js"
      ],
      "run_at": "document_start"
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{fe753687-08a4-48f5-9ae9-474140575af8}"
    }
  }
}