Examine source code of TabOrganizer

{
  "manifest_version": 2,
  "name": "TabOrganizer",
  "version": "1.0.0",
  "description": "Group open tabs into custom categories and manage them in a dynamic vortex-grid layout.",
  "permissions": [
    "tabs",
    "storage",
    "clipboardWrite"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_title": "TabOrganizer"
  },
  "icons": {
    "48": "icon.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{7e591cfc-1975-4842-9ba0-e7d28e1f160b}"
    }
  }
}