Examine source code of ARK Price Ticker

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "ARK Price Ticker",
  "description": "ARK Price Ticker and other utilities around ARK",
  "version": "1.1.4resigned1",
  "background": {
    "page": "background.html"
  },
  "browser_action": {
    "default_icon": "icon.png",
    "default_popup": "popup.html"
  },
  "author": "Taha Tawfik <microtaha@gmail.com>",
  "icons": {
    "128": "icon.png"
  },
  "web_accessible_resources": [
    "icon.png"
  ],
  "permissions": [
    "background",
    "notifications",
    "storage",
    "https://api.coinmarketcap.com/",
    "http://www.ecb.europa.eu/"
  ],
  "applications": {
    "gecko": {
      "id": "fhjlhelkkpngpbhhlnigamdanajnnfhg@chrome-store-foxified-3814035381"
    }
  }
}