Examine source code of Google→ChatGPT Redirect

{
  "manifest_version": 2,
  "name": "Google→ChatGPT Redirect",
  "version": "1.0",
  "author": "jojihatzz",
  "description": "On Google search pages, click the icon to open ChatGPT with the same query.",
  "icons": {
    "48": "icon.png",
    "96": "icon.png"
  },
  "permissions": [
    "tabs",
    "activeTab",
    "*://www.google.com/*",
    "*://duckduckgo.com/*",
    "*://www.bing.com/*",
    "*://www.youtube.com/*",
    "*://search.yahoo.com/*",
    "*://www.baidu.com/*",
    "*://yandex.com/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "browser_action": {
    "default_title": "Send query to ChatGPT"
  },
  "applications": {
    "gecko": {
      "id": "google-to-chatgpt@ex.com",
      "strict_min_version": "58.0"
    }
  }
}