Examine source code of Torn Grabber

{
  "manifest_version": 2,
  "name": "Torn Grabber",
  "version": "0.1",
  "short_name": "Mengambil data player dari torn",
  "description": "Mengambil data player dari torn untuk disimpan di firebase",
  "browser_action": {
    "default_icon": "images/icon.png",
    "default_popup": "html/popup.html",
    "default_title": "Grabber for uChicago Canvas!"
  },
  "content_security_policy": "script-src 'self' https://www.gstatic.com/ https://*.firebaseio.com https://www.googleapis.com; object-src 'self'",
  "icons": {
    "16": "images/icon16.png",
    "48": "images/icon48.png",
    "128": "images/icon128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://https://www.torn.com/bounties.php/*"
      ],
      "js": [
        "scripts/jquery-3.3.1.min.js",
        "scripts/content_bounty_list.js"
      ]
    }
  ],
  "permissions": [
    "tabs",
    "downloads"
  ],
  "background": {
    "page": "html/background.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{52e0ca00-efca-490e-96e5-0fd51b91cfd0}"
    }
  }
}