Examine source code of Hibux

{
  "manifest_version": 2,
  "name": "Hibux",
  "version": "3.3.2resigned1",
  "description": "Hibux.com - The best and easiest solution for saving money when shopping online.",
  "default_locale": "en",
  "browser_action": {
    "default_icon": "images/icon128.png",
    "default_popup": "popup.html"
  },
  "icons": {
    "64": "images/icon64.png",
    "128": "images/icon128.png"
  },
  "applications": {
    "gecko": {
      "id": "@hibuxcom"
    }
  },
  "web_accessible_resources": [
    "javascript/*.js",
    "styles/*.css",
    "redirect.html"
  ],
  "content_scripts": [
    {
      "css": [
        "styles/alert.css"
      ],
      "js": [
        "javascript/background-helper.js"
      ],
      "matches": [
        "<all_urls>"
      ],
      "run_at": "document_end"
    }
  ],
  "permissions": [
    "alarms",
    "tabs",
    "activeTab",
    "storage",
    "cookies",
    "notifications",
    "<all_urls>"
  ],
  "background": {
    "page": "background.html"
  },
  "homepage_url": "https://hibux.com/"
}