Top 50 sites

manifest.json

{
  "manifest_version": 2,
  "name": "Top 50 sites",
  "version": "1.2",
  "description": "Shows the most visited websites",
  "icons": {
    "16": "icon16.png"
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": "icon16.png"
  },
  "permissions": [
    "topSites"
  ],
  "update_url": "https://edge.microsoft.com/extensionwebstorebase/v1/crx"
}