Mozilla Firefox for U3

Mozilla Firefox for U3 is an adaptation of Mozilla Firefox - Portable Edition designed for the U3 platform so you can take your browser with your bookmarks, extensions and saved passwords with you on your U3 device.


Mozilla Firefox is a fast, full-featured web browser that's easy to use. It has all the same great features as regular Firefox including popup-blocking, tabbed-browsing, integrated search, improved privacy features, automatic updating and more. Plus, it leaves no personal information behind on the machine you run it on, so you can take your favorite browser along with all your favorite bookmarks and extensions with you wherever you go. Learn more about Mozilla Firefox...


For help getting Mozilla Firefox for U3 up and running, visit Mozilla Firefox for U3 Support:

Download Details

  • File size: 6.5MB (download), 26Mb (installed on U3 device)
  • Publisher: John T. Haller and Mozilla
  • Date updated: September 25, 2006
  • System Requirements: Windows 2000 SP 4/XP, U3 Device
  • License: Partially Free / Open Source (Launcher: GPL, Firefox: MPL), Closed Source (AppStopXII U3 Utility)


Many thanks to Gerard Balagué (mai9) for the original code handling extension path rewriting in his FreeTheFox launcher and tracon for some of the original ideas with his fflaunch launcher. Thanks as well to FlashBanG and all the folks participating in the mozillaZine forum thread for their ideas, suggestions and support.