Examine source code of Tab AutoUpdater

{
  "manifest_version": 2,
  "name": "Tab Reloader",
  "version": "1.0",
  "description": "Eine Erweiterung zum automatischen Aktualisieren des ersten Tabs in einem einstellbaren Zeitintervall.",
  "permissions": [
    "tabs",
    "storage"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_title": "Tab Reloader"
  },
  "icons": {
    "48": "icon.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{44d62b6b-9d44-4332-8e28-63c26bb2f20a}"
    }
  }
}