Examine source code of FavChatGPT

{
  "manifest_version": 2,
  "name": "FavChatGPT",
  "version": "1.2",
  "description": "Keep track of your favorite ChatGPT chats!",
  "permissions": [
    "activeTab",
    "storage"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "content_scripts": [
    {
      "matches": [
        "https://chat.openai.com/*"
      ],
      "js": [
        "contents.js"
      ],
      "css": [
        "contents.css"
      ],
      "run_at": "document_end"
    }
  ],
  "browser_action": {
    "default_icon": {
      "48": "icon.png"
    },
    "default_title": "FavChatGPT",
    "default_popup": "popup.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{daad031e-b97e-4c9d-a1c3-b43a3e985ae2}"
    }
  }
}