Examine source code of Aktien Live Ticker

{
  "manifest_version": 2,
  "name": "Aktien Live Ticker",
  "version": "2.1",
  "description": "Floating stock ticker window with live updates",
  "permissions": [
    "storage",
    "downloads",
    "https://query1.finance.yahoo.com/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_title": "Open Stock Ticker"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "aktien-live-ticker@local",
      "strict_min_version": "115.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  }
}