X-Firefox

118.0.1 [rev8] Portable Firefox browser for Windows

Sven Sorensen

Modified version of Firefox that can run directly from a USB drive or other external storage device.

Free and open source web browsing software download, reviewed by Sven Sørensen
Web browser that can navigate the Internet, bookmark pages - Screenshot of X-Firefox
User interface - Screenshot of X-Firefox
X-Firefox screenshot
X-Firefox screenshot
X-Firefox screenshot
X-Firefox screenshot
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A portable version of the popular Firefox browser by Mozilla.

X-Firefox is a free web browser based completely on Mozilla Firefox. The exception to the similarities lies in the fact that X-Firefox is portable.

As a portable application, X-Firefox can be run from virtually any location like a network drive or a USB flash drive. Installation is not required.

In terms of features, X-Firefox contains all of the features that can be found in the most recent versions of Mozilla Firefox. That includes tabs, bookmarks, private browsing, etc.

After you're done with X-Firefox, you can safely delete it along with all of your browsing history. Nothing should be saved in the Windows Registry.

Overall, X-Firefox is a portable version of Firefox; nothing more and nothing less.

Features of X-Firefox

  • Add-ons: Customize your browser with a variety of add-ons.
  • Bookmark Toolbar: Access your most visited sites quickly.
  • Enhanced Security: Stay safe and secure online.
  • Enhanced Sync: Sync your bookmarks, add-ons and more.
  • Fast Performance: Browse quickly and efficiently.
  • HTML5 Support: Enjoy the latest web standards.
  • Multi-account Containers: Keep your online activity separate.
  • Parental Controls: Monitor your family's web usage.
  • Pocket: Save any article for later.
  • Private Browsing: Protect your personal data.
  • Private Network: Connect with added security.
  • Reader Mode: Enjoy articles without distractions.
  • Screenshots: Capture any part of a webpage.
  • Search Tools: Find what you need quickly.
  • Tabbed Browsing: Intuitively open multiple websites in one window.

Compatibility and License

X-Firefox is free software made available under the Mozilla Public Licence for the Windows operating system from web browsers. With this type of license, users are permitted to freely download, modify and distribute it without any real restrictions.

winPenPack accepts donations for the continued development of this free software.

What version of Windows can X-Firefox run on?

X-Firefox can be used on a computer running Windows 11 or Windows 10. Previous versions of the OS shouldn't be a problem with Windows 8 and Windows 7 having been tested. It comes in both 32-bit and 64-bit downloads.


Filed under:
  1. X-Firefox Download
  2. Free Web Browsers
  3. Open source and GPL software
  4. Portable Software
  5. Web Browsing Software
X-Firefox has been picked by our editors as very good.
We have tested X-Firefox 118.0.1 [rev8] against malware with several different programs. Please review the test results. We have not certified this program as clean. [Read more]