New Tab URL by Anton Demydov

Features:
• Override new tab page with any custom URL
• Optional HTTP Basic Authentication support for protected URLs
• Simple, easy-to-use settings interface
• Lightweight with no data collection
• Open source

Use cases:
• Set your company's internal dashboard as the new tab page
• Access protected intranet pages with automatic authentication
• Use your own custom start page or homepage
• Quick access to frequently used web applications

Privacy: This extension stores settings locally on your device only. No data is collected or transmitted.

I personally use it for the dashboard which is not public