Examine source code of Hypixel Alerts

{
  "manifest_version": 2,
  "name": "Hypixel Alerts",
  "description": "Extension for better notifications on the Hypixel Forums.",
  "version": "0.4.2resigned1",
  "author": "bugfroggy",
  "homepage_url": "https://bugg.co/",
  "offline_enabled": false,
  "icons": {
    "16": "pics/forum-alerts-16x.png",
    "19": "pics/forum-alerts-icon.png",
    "48": "pics/forum-alerts-48x.png",
    "64": "pics/forum-alerts-64x.png",
    "128": "pics/forum-alerts-128x.png"
  },
  "short_name": "HP Alerts",
  "browser_action": {
    "default_icon": "pics/forum-alerts-icon.png",
    "default_popup": "popup.html"
  },
  "permissions": [
    "storage",
    "notifications",
    "https://*.bugg.co/",
    "https://hypixel.net/"
  ],
  "applications": {
    "gecko": {
      "id": "forumalerts@bugg.co"
    }
  },
  "background": {
    "scripts": [
      "vendor/jquery-3.2.1.min.js",
      "background.js"
    ]
  }
}