Examine source code of Auto Scroll to Bottom

{
  "manifest_version": 2,
  "name": "Auto Scroll to Bottom",
  "version": "1.0",
  "description": "Automatically scrolls to the bottom of the page and stops.",
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "permissions": [
    "tabs",
    "activeTab"
  ],
  "browser_action": {
    "default_title": "Auto Scroll"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{0936f05b-04c9-4fa6-8e93-3aa8b331ed15}"
    }
  }
}