Examine source code of Auto Tab Suspender

{
  "manifest_version": 2,
  "name": "Auto Tab Suspender",
  "version": "1.0",
  "description": "Automatically suspends inactive tabs to save memory and improve performance.",
  "permissions": [
    "tabs",
    "storage"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_title": "Auto Tab Suspender"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{54aab243-d0b8-43d0-bbd3-d106cca40730}"
    }
  }
}