Examine source code of Quote Popper

{
  "manifest_version": 2,
  "name": "Quote Popper",
  "version": "1.0",
  "description": "Displays a quote about hard work and passive income.",
  "icons": {
    "48": "icon.png"
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": "icon.png"
  },
  "permissions": [
    "activeTab"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{d5a5b138-3540-4dac-9a36-8fb9c80fa675}"
    }
  }
}