Examine source code of Gets The Cookie

{
  "description": "Get This Page Cookie for Node.js Script.",
  "manifest_version": 2,
  "name": "Cookie Extension",
  "version": "1.0",
  "icons": {
    "48": "icons/golden_axe.png"
  },
  "background": {
    "scripts": [
      "js/app.js"
    ]
  },
  "browser_action": {
    "default_icon": {
      "19": "icons/golden_axe.png",
      "38": "icons/golden_axe.png"
    },
    "default_title": "Cookie Extension"
  },
  "permissions": [
    "<all_urls>",
    "activeTab",
    "cookies",
    "alarms",
    "clipboardWrite",
    "webRequest"
  ]
}