Examine source code of maturegamersnetwork.info

{
  "theme": {
    "images": {
      "theme_frame": "firefoxtop.jpg"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#c2690f"
    }
  },
  "version": "2.0",
  "name": "maturegamersnetwork.info",
  "manifest_version": 2,
  "description": "<a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/3ab8c30ac18d0fb67c70bc6193c4ef30eec1b7da23e5e6028ca1f1d9b3d2e5c4/http%3A//www.maturegamersnetwork.info\">http://www.maturegamersnetwork.info</a>"
}