Examine source code of Misskey Now

{
  "manifest_version": 3,
  "name": "Misskey Now",
  "version": "0.2.0",
  "description": "「Misskeyで僕の見ている世界を共有しようかな❓❕」 Misskey Now は閲覧中のウェブサイトを Misskey インスタンスへ共有するだけの拡張機能です",
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "js": [
        "main.js"
      ]
    }
  ],
  "permissions": [
    "tabs",
    "storage"
  ],
  "icons": {
    "48": "assets/48x48.png",
    "96": "assets/96x96.png"
  },
  "action": {
    "default_popup": "main.html"
  },
  "host_permissions": [
    "*://*/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "misskey-now@sasakulab.com",
      "strict_min_version": "109.0"
    }
  }
}