Examine source code of Currency Updates

{
  "manifest_version": 2,
  "name": "Currency",
  "version": "1.1resigned1",
  "description": "Shows Updated Currency Values Base as US Dollar",
  "permissions": [
    "<all_urls>"
  ],
  "browser_action": {
    "browser_style": true,
    "default_title": "CurrencyRates",
    "default_popup": "popup.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{f31b2f92-31fb-4ca5-bf09-f63425b6da91}"
    }
  }
}