By default, Microsoft Edge doesn’t issue a warning if you close your Microsoft Edge browser window with multiple tabs open. Sometimes we may accidentally close the browser window and wondering how to restore the session back.
You can press Ctrl + Shift + T to reopen the tabs closed during the last browser session.
Additionally, you can force Microsoft Edge to warn you when you attempt to close the browser window accidentally with multiple open tabs. Here’s how to do that.
Enable Warning on Closing Multiple Tabs in Microsoft Edge
To enable the warning on closing multiple tabs in Microsoft Edge Chromium, follow these steps:
- Start Microsoft Edge Chromium.
- Open Edge Settings and more (…) → Settings → Appearance → Browser behavior and features.
- This launches the following link: edge://settings/appearance/browserBehavior
- Turn on or off the “Ask before closing a window with multiple tabs” toggle switch.
The browser will prompt you when you close it with tabs open.

[Last tested in Edge Version 145.0.3800.65]
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