Examine source code of Amazon Search

{
  "name": "Amazon Search",
  "description": "Search The Worlds Best Shopping Site - Find Every Thing You Want And More At Amazon Search App",
  "browser_action": {
    "default_icon": {
      "16": "amazon16.png"
    },
    "icons": {
      "16": "amazon16.png",
      "32": "amazon32.png",
      "48": "amazon48.png",
      "128": "amazon128.png"
    },
    "default_title": "Amazon Search",
    "default_popup": "amazonl.html"
  },
  "manifest_version": 2,
  "version": "1.4resigned1",
  "browser_specific_settings": {
    "gecko": {
      "id": "{98dd8e70-e55b-4c4e-bb59-e831bf430fad}"
    }
  }
}