Examine source code of Quick Google Translate

{
  "manifest_version": 2,
  "name": "Quick Google Translate",
  "version": "1.5",
  "description": "This extension displays a popup with google translator. The ability to quickly translate without going to the site.",
  "icons": {
    "128": "icon.png"
  },
  "permissions": [
    "<all_urls>"
  ],
  "browser_action": {
    "default_title": "Quick Google Translate",
    "default_popup": "popup/index.html",
    "browser_style": true
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{08e8b103-04be-4c47-9243-99833a8473c5}"
    }
  }
}