Mozilla Firefox ESR, Portable Edition

Firefox Logoyour browser, to go™

Mozilla Firefox® ESR, Portable Edition is the Extended Support Release of the popular Mozilla Firefox web browser bundled with a launcher as a portable app, so you can take your browser, bookmarks and passwords with you. It is intended for groups who deploy and maintain the desktop environment in large organizations such as universities and other schools, county or city governments and businesses and the developers who support them. Individual users should use standard Mozilla Firefox, Portable Edition.

Make a Donation - Support's development and hosting

Mozilla Firefox ESR, Portable Edition works best with the Platform


portable_firefox_small.pngMozilla Firefox is a fast, full-featured web browser that's easy to use. It has lots of great features including popup-blocking, tabbed-browsing, integrated search, improved privacy features, automatic updating and more. Plus, thanks to the launcher bundled in the Mozilla Firefox, Portable Edition, 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...

Additional Languages

Language Version Link
Arabic عربي 52.5.3 Download 52.5.3
Chinese (Simplified) 中文 (简体) 52.5.3 Download 52.5.3
Chinese (Traditional) 正體中文 (繁體) 52.5.3 Download 52.5.3
Czech Čeština 52.5.3 Download 52.5.3
Dutch Nederlands 52.5.3 Download 52.5.3
English English 52.5.3 Download 52.5.3
EnglishGB English (British) 52.5.3 Download 52.5.3
French Français 52.5.3 Download 52.5.3
German Deutsch 52.5.3 Download 52.5.3
Hungarian Magyar 52.5.3 Download 52.5.3
Italian Italiano 52.5.3 Download 52.5.3
Japanese 日本語 52.5.3 Download 52.5.3
Korean 한국어 52.5.3 Download 52.5.3
Polish Polski 52.5.3 Download 52.5.3
Portuguese (Brazilian) Português (do Brasil) 52.5.3 Download 52.5.3
Portuguese (Portugal) Português (Europeu) 52.5.3 Download 52.5.3
Russian Русский 52.5.3 Download 52.5.3
Slovak slovenčina 52.5.3 Download 52.5.3
Spanish (Spain) Español (de España) 52.5.3 Download 52.5.3
Spanish (International) Español (internacional) 52.5.3 Download 52.5.3


osi_certified.pngFor help getting Firefox Portable up and running, visit Firefox Portable Support:

Download Details

  • Publisher: (John T. Haller) and Mozilla
  • Date updated: 2017-12-30
  • System Requirements: Windows XP/Vista/7/8/10, Wine on Linux/UNIX
  • License: Free / Open Source (Launcher: GPL; Firefox: MPL)
  • Source Code: Launcher source (included), Firefox source
  • MD5 Hash (English): 80b33733bf4a9389978511a52be8682d

Mozilla®, Firefox® and the Firefox logo are registered trademarks of the Mozilla Foundation and are used with permission.