Examine source code of Concept Racing no1

{
  "theme": {
    "images": {
      "theme_frame": "CR-Firefox.png"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Concept Racing no1",
  "manifest_version": 2,
  "description": "CR <a href=\"https://outgoing.prod.mozaws.net/v1/71cf195ba43a998995671ec3f33843c2f4490bd5173a25039a073e93a222c49d/http%3A//www.conceptracing.net\" rel=\"nofollow\">www.conceptracing.net</a>\n\nLive for Speed <a href=\"https://outgoing.prod.mozaws.net/v1/8c695add522ed75ecee4fd9d51c2072d8e440a2b29e730d753cb60d0525f0c30/http%3A//www.liveforspeed.net\" rel=\"nofollow\">www.liveforspeed.net</a>"
}