Examine source code of Red Priest

{
  "theme": {
    "images": {
      "theme_frame": "firefox_banner.jpg"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Red Priest",
  "manifest_version": 2,
  "description": "Akahoushi Rezo from Slayers anime &amp; manga series written by Hajime Kanzaka and illustrated by Rui Araizumi. Fanart made entirely by me.\n\nImage can be found at my gallery:\n<a href=\"https://outgoing.prod.mozaws.net/v1/05c00250a2746dfdac2f6258b7421ce9cb20a54e01b6d1260ba7b58919b83e80/http%3A//www.erlondeiel.deviantart.com\" rel=\"nofollow\">http://www.erlondeiel.deviantart.com</a>"
}