Examine source code of Time Display

{
  "manifest_version": 2,
  "name": " TIME ADDON",
  "version": "1.3resigned1",
  "description": "Time on IRCTC By Chinna$rinu",
  "icons": {
    "48": "icons/time.jpg"
  },
  "applications": {
    "gecko": {
      "id": "TIME@mozilla.org",
      "strict_min_version": "45.0"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.irctc.co.in/*"
      ],
      "js": [
        "time.js"
      ]
    }
  ]
}