Examine source code of Knowledge Quotes

{
  "manifest_version": 2,
  "name": "Knowledge Quotes",
  "description": "Display a random quote about knowledge with each click.",
  "version": "1.0",
  "permissions": [
    "activeTab"
  ],
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "48": "icon48.png",
      "96": "icon96.png"
    }
  },
  "icons": {
    "48": "icon48.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{4725ec22-b108-4cab-9493-1d6a95bd1a2d}"
    }
  }
}