[Bug] Chrome with New Tab extension starts with about:blank tab instead of extension

[Alexander Ostapenko]

When installing any extension that overrides the New Tab page, Chrome opens two tabs — about:blank (focused) and the extension’s New Tab page — each time a new browser window is created.

This issue occurs only on macOS and only for chrome profiles created after recent chrome updates.

Steps to Reproduce:

1. Create a new Chrome profile → Continue without account

2. Install any extension that overrides the New Tab page (e.g. Homey, Momentum, or any other New Tab extension)

3. Close Chrome -> Open Chrome (newly created account)

Environment:

OS: macOS

Expected result:

Only one tab — the extension’s New Tab page.

Actual result:

Two tabs open — about:blank (focused) and the extension’s page.