Examine source code of TAB-CLOCKER 2.0

{
  "manifest_version": 2,
  "name": "clock",
  "description": "know the exact time , once u click on new tab",
  "homepage_url": "https://aishwaryaideaswordpress.wordpress.com/2017/04/10/my-add-on-tab-clocker/",
  "version": "1.1resigned1",
  "icons": {
    "32": "icons/page-32.png",
    "48": "icons/page-48.png"
  },
  "chrome_url_overrides": {
    "newtab": "clock.html"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "permissions": [
    "tabs",
    "activeTab"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{cc88dc97-01b4-49de-9915-363291613407}"
    }
  }
}