Examine source code of localbitcoins paxful

{
  "manifest_version": 2,
  "name": "localbitcoins paxful ",
  "description": "This Extension shows the current Bitcoin exchange rate and displays the best sites to buy and sell bitcoins with multiple payment methods localbitcoins,paxful...etc",
  "version": "2.0.1",
  "icons": {
    "16": "img/icon-16.png",
    "48": "img/icon-48.png",
    "128": "img/icon-128.png"
  },
  "background": {
    "page": "background.html"
  },
  "browser_action": {
    "default_icon": "img/icon-48.png",
    "default_popup": "popup.html"
  },
  "permissions": [
    "https://*.blockchain.com/*",
    "https://*.bitcoinaverage.com/*",
    "storage",
    "background"
  ],
  "content_security_policy": "script-src 'self' https://www.gstatic.com; object-src 'self'"
}