Examine source code of nosferatu.tk

{
  "theme": {
    "images": {
      "theme_frame": "personacabecera.jpg"
    },
    "colors": {
      "frame": "#2b2828",
      "tab_background_text": "#f5eded"
    }
  },
  "version": "2.0",
  "name": "nosferatu.tk",
  "manifest_version": 2,
  "description": "<a href=\"https://outgoing.prod.mozaws.net/v1/cd646bfda4e7dc61a966095cfc7140033be91aa0c98d006483513f8d5c61ef18/http%3A//www.nosferatu.tk\" rel=\"nofollow\">www.nosferatu.tk</a>"
}