Examine source code of Smart Tab Sortest

{
  "manifest_version": 3,
  "name": "Smart Tab Sorter",
  "version": "1.0",
  "description": "Automatically organizes open tabs into groups based on their domain or a user-defined category, providing a cleaner and more manageable browsing experience. It can collapse groups and allow quick switching between them.",
  "action": {
    "default_popup": "popup.html",
    "default_icon": "smart_tab_sorter.png"
  },
  "icons": {
    "128": "smart_tab_sorter.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "b8cherieleonekmis938@hotmail.com"
    }
  }
}