Examine source code of Scroll to the bottom

{
  "manifest_version": 2,
  "name": "Scroll to the bottom",
  "version": "1.2resigned1",
  "description": "Automatic scroll to the bottom of any website",
  "icons": {
    "48": "icons/icon.png"
  },
  "browser_action": {
    "default_icon": "icons/icon.png",
    "default_title": "Scroll to the bottom"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "permissions": [
    "webRequest",
    "activeTab"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{cfd62383-dddd-4ed9-8e4c-732447f1e310}"
    }
  }
}