Examine source code of Free2Fly.org

{
  "theme": {
    "images": {
      "theme_frame": "header4firefox.jpg"
    },
    "colors": {
      "frame": "#6d00fc",
      "tab_background_text": "#00e4e8"
    }
  },
  "version": "2.0",
  "name": "Free2Fly.org",
  "manifest_version": 2,
  "description": "<a href=\"https://outgoing.prod.mozaws.net/v1/b2ae0f10917a1fc4e75086c8ecd5c528bbd9dee0989f30f5e07d3c63c386ca6f/http%3A//Free2Fly.org\" rel=\"nofollow\">Free2Fly.org</a> is a non-profit supporting Cystic Fibrosis families. Show your support here and by joining with Free2Fly in the fight to find a cure.\n\nThank you."
}