Examine source code of new tab links

{
  "name": "new tab links",
  "manifest_version": 2,
  "version": "1.6.1",
  "description": "A replacement new tab page, displays a clock and links of your choosing.",
  "applications": {
    "gecko": {
      "id": "{2fdf13eb-fee6-48c7-9bd3-5624a005d68e}"
    }
  },
  "chrome_url_overrides": {
    "newtab": "index.html"
  },
  "permissions": [
    "storage"
  ]
}