Examine source code of NesQuick

{
  "manifest_version": 2,
  "name": "NesQuick",
  "version": "1.3resigned1",
  "description": "Create account easly by NesQuick, Choose your prefered email prefix and password... and let NesQuick do the rest.",
  "icons": {
    "16": "img/favicon-16.png",
    "48": "img/android-icon-48.png",
    "96": "img/android-icon-96.png"
  },
  "permissions": [
    "downloads",
    "storage",
    "contextMenus",
    "activeTab",
    "notifications",
    "<all_urls>"
  ],
  "browser_action": {
    "default_title": "Quick Test Account Nespresso",
    "default_popup": "index.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{5b4cea12-ff97-4ad2-bd0b-330e9e22d803}"
    }
  }
}