

The company also warns that users who update to Firefox 94 lose their tabs when installing the new version of the browser. All warnings can be managed within Firefox Settings,” Mozilla says. Despite these changes to the default behavior, you will still have full control over the quit/close modal behavior. The risk of accidental closure is higher in this context since the quit shortcut (⌘+Q) is adjacent to the switch-application shortcut (⌘+Tab).


“The only instance in which a close modal is on by default is for two-key quit shortcuts on macOS and Linux. There’s a new option called “Confirm before closing multiple tabs” under the tabs section, and enabling it brings back the previous behavior that was available in Firefox 93. To enable the expected behavior and be warned when closing Firefox with multiple tabs open, just launch the browser and head over to the options screen and look under the general tab.

The close actions in these particular contexts were likely intentional and so the messages provided unnecessary and perhaps unwelcome friction,” Mozilla says. “Starting in Firefox version 94, Firefox no longer warns you by default when you exit the browser or close a window using a menu, button, or three-key command. However, Firefox 94, which is the latest version of Mozilla’s well-known browser, removes this behavior by default, with the parent company explaining that users need to enable this setting manually from the configuration screen. As many modern browser users know already, closing an application with multiple tabs open should trigger a warning, therefore letting you there’s unsaved work that you could lose.
