How to reset Firefox to default settings on Windows 11, 10

If you're experiencing issues with Firefox, use these steps to reset the browser to its factory settings to start fresh preserving your data.

Firefox reset feature
Firefox reset feature
  • To reset Firefox to default settings on Windows 11 (or 10), open Firefox’s “More troubleshooting information” page, click “Refresh Firefox” and confirm the action.

It’s possible to reset your Mozilla Firefox browser to its default settings on Windows 11 and 10 (or in any other supported platform) to fix errors, resolve problems, and improve performance. In this guide, I’ll outline the steps to complete this task.

When you first install Firefox, everything is blazing fast, but over time, you will notice performance issues and other problems. In these cases, you can reset the browser to restore the default settings while keeping your more important data (such as login credentials, bookmarks, browsing history, autofill, cookies, and even the previously opened websites) to start fresh again as if you were installing Firefox for the first time.

The reset feature will remove the add-ons, such as extensions and themes, and it’ll delete the current profile and its settings since these elements are usually the ones that cause problems.

In this guide, I’ll teach you the steps to reset and start fresh with Firefox on Windows 11 and 10.

Reset Firefox to defaults without losing your data

To reset Firefox to its defaults to fix problems and improve performance, use these steps:

  1. Open Firefox on Windows 11 (or 10).

  2. Click the main menu (hamburger button) and click on Help.

  3. Choose the “More troubleshooting information” option.

    More troubleshooting information

    Quick tip: You can also navigate straight to “about:support” from the address bar to open the troubleshooting information page.
  4. Click the Refresh Firefox button to reset the browser.

    Firefox reset feature

  5. Click the Refresh Firefox button again.

  6. (Optional) Choose the “Restore all windows & tabs” option.

    Firefox restore session after reset

  7. Click the “Let’s go” button.

Once you complete the steps, Firefox will proceed to reset the browser by backing up the profile data, such as credentials, history, autofill, cookies, and more. It’ll delete the profile, including add-ons and customizations, and finally, the process will recreate the profile and restore your data. Since the settings will be restored to their defaults, you will have to reconfigure your preferences.

About the author

Mauro Huculak is a Windows How-To Expert who started Pureinfotech in 2010 as an independent online publication. He has also been a Windows Central contributor for nearly a decade. Mauro has over 14 years of experience writing comprehensive guides and creating professional videos about Windows and software, including Android and Linux. Before becoming a technology writer, he was an IT administrator for seven years. In total, Mauro has over 20 years of combined experience in technology. Throughout his career, he achieved different professional certifications from Microsoft (MSCA), Cisco (CCNP), VMware (VCP), and CompTIA (A+ and Network+), and he has been recognized as a Microsoft MVP for many years. You can follow him on X (Twitter), YouTube, LinkedIn and Email him at [email protected].