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Starting with Firefox version 94, you no longer get a warning when you attempt to close a Firefox window with multiple tabs open. Luckily, the feature is not fully removed, and you can enable it from Firefox’s settings menu.

RELATED: How to Close All Firefox Windows at Once

Get a Warning When You Close Multiple Tabs in Firefox

To re-enable the missing prompt in Firefox, first, open Firefox on your Windows, Mac, Linux, or Chromebook computer.

In Firefox, at the top-right corner, click the three horizontal lines.

From the menu that opens, select “Settings.”

Select "Settings" from the Firefox menu.

On the “Settings” window, in the left sidebar, click “General.”

On the “General” screen, in the “Tabs” section, enable the “Confirm Before Closing Multiple Tabs” option.

Tip: To again disable the prompt that appears when closing multiple tabs, turn off the “Confirm Before Closing Multiple Tabs” option.

Turn on "Confirm Before Closing Multiple Tabs" on the "General" screen.

And that’s all there is to it. Going forward, when you close a window with multiple tabs open in it, Firefox will display a warning before the window is actually closed.

Did you know you can selectively close multiple tabs at once in both Firefox and Chrome?

RELATED: How to Select and Close Multiple Chrome or Firefox Tabs at Once

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Mahesh Makvana is a freelance tech writer who specializes in writing how-to guides. He has been writing tech tutorials for over a decade now. He’s written for some of the prominent tech sites including MakeUseOf, MakeTechEasier, and Online Tech Tips.
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