Examine source code of Yahoo New Tab766

{
  "name": "Yahoo New Tab",
  "description": "Welcome to My Yahoo. Get your headlines, email, quotes and more — all in one place.",
  "manifest_version": 2,
  "version": "1.0",
  "homepage_url": "https://github.com/heubergen/yahoo-new-tab",
  "chrome_url_overrides": {
    "newtab": "newtab.html"
  },
  "icons": {
    "48": "./images/icon_48.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{0d8af674-ad03-410d-878a-156e680927fe}"
    }
  }
}