Examine source code of Gemini UI Audio — Quick Listen

{
  "manifest_version": 3,
  "default_locale": "en",
  "name": "Gemini UI Audio — Quick Listen",
  "version": "1.0.0",
  "description": "Adds a quick Listen audio button to Gemini responses. (Firefox port of the Chrome extension by fast-and-useful).",
  "author": "fast-and-useful (Firefox Port)",
  "browser_specific_settings": {
    "gecko": {
      "id": "gemini-ui-audio-listen@digitalcircus.us",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "host_permissions": [
    "https://gemini.google.com/*"
  ],
  "content_scripts": [
    {
      "css": [
        "style.css"
      ],
      "js": [
        "content.js"
      ],
      "matches": [
        "https://gemini.google.com/*"
      ],
      "run_at": "document_idle"
    }
  ],
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "permissions": []
}