Examine source code of Quick Access Tabs

{
  "manifest_version": 2,
  "name": "Quick Access Tabs",
  "version": "1.0",
  "description": "Quickly access your favorite or frequently visited websites.",
  "icons": {
    "48": "icons/quick-access-icon-48.png"
  },
  "permissions": [
    "tabs"
  ],
  "browser_action": {
    "default_icon": "icons/quick-access-icon-48.png",
    "default_popup": "quick-access-popup.html",
    "default_title": "Quick Access Tabs"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{b116dc28-b01a-476e-8ae4-9fbbe0693eab}"
    }
  }
}