Examine source code of ICDQCMAS

{
  "manifest_version": 2,
  "name": "ICDQCMAS",
  "description": "This extension calculates the ICDQCMAS for the selected lineup in Fantagazzetta.",
  "version": "1.3resigned1",
  "browser_action": {
    "default_icon": "icon.png",
    "default_popup": "fg_popup.html"
  },
  "permissions": [
    "activeTab",
    "http://leghe.fantagazzetta.com/*",
    "https://leghe.fantagazzetta.com/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "http://leghe.fantagazzetta.com/*",
        "https://leghe.fantagazzetta.com/*"
      ],
      "js": [
        "jquery-3.2.1.min.js"
      ]
    }
  ],
  "background": {
    "scripts": [
      "jquery-3.2.1.min.js",
      "background.js"
    ],
    "persistent": false
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{d84236dc-d199-458d-9291-f2ec654ff8bd}"
    }
  }
}