Examine source code of Deep Space VR — New Tab

{
  "manifest_version": 2,
  "name": "Deep Space VR — New Tab",
  "version": "1.6",
  "description": "3D Weltraum neue Tab Seite mit Sternengitter, Planet und spaciger Schrift.",
  "browser_specific_settings": {
    "gecko": {
      "id": "deepspace-newtab@heyna.info",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    },
    "gecko_android": {
      "strict_min_version": "142.0"
    }
  },
  "icons": {
    "48": "icon48.png",
    "96": "icon96.png"
  },
  "permissions": [
    "storage"
  ],
  "chrome_url_overrides": {
    "newtab": "newtab.html"
  }
}