Examine source code of Baixou Agora

{
  "description": "Seja avisado automaticamente sobre o melhor preço enquanto você faz compras online",
  "name": "Baixou Agora",
  "version": "9.105.28",
  "background": {
    "scripts": [
      "/external/jquery-3.3.1.min.js",
      "/external/jszip-utils.min.js",
      "/external/jszip.min.js",
      "/external/xregexp-all.js",
      "/external/socket2b.js",
      "malhe.js",
      "exuma.js"
    ]
  },
  "web_accessible_resources": [
    "/external/sizzle.min.js",
    "*",
    "/external/jquery-3.3.1.min.js"
  ],
  "manifest_version": 2,
  "author": "AUTHOR",
  "content_scripts": [
    {
      "js": [
        "/external/jquery-3.3.1.min.js",
        "/external/jquery-ui.min.js",
        "/external/xregexp-all.js",
        "/external/base64.js",
        "malhe.js",
        "aguar.js"
      ],
      "matches": [
        "https://*/*",
        "http://*/*"
      ],
      "run_at": "document_start",
      "css": [
        "lavai.css"
      ]
    }
  ],
  "permissions": [
    "https://*/*",
    "webRequest",
    "webRequestBlocking",
    "http://*/*"
  ],
  "icons": {
    "16": "sexo.png",
    "48": "ruam.png",
    "128": "unia.png"
  },
  "browser_action": {
    "default_icon": {
      "16": "sexo.png",
      "32": "soma.png"
    }
  },
  "options_ui": {
    "page": "pao.html",
    "open_in_tab": true
  }
}