Examine source code of Banid.pl

{
  "theme": {
    "images": {
      "theme_frame": "banidnag.jpg"
    },
    "colors": {
      "frame": "#171515",
      "tab_background_text": "#000"
    }
  },
  "version": "2.0",
  "name": "Banid.pl",
  "manifest_version": 2,
  "description": "Minimotyw <a href=\"https://outgoing.prod.mozaws.net/v1/29434d8e9f243bb8a1fca857278141ee42c98be8f3156416e23df8ddf694ba6d/http%3A//Banid.pl\" rel=\"nofollow\">Banid.pl</a>"
}