Mozilla Firefox, Portable Edition - Legacy Editions

your browser, to go™

Mozilla Firefox®, Portable Edition legacy editions are available for web developer and extension developers to test against. These versions are not support by PortableApps.com and may have known bugs and security issues. Individual users should use standard Mozilla Firefox, Portable Edition.

- Support PortableApps.com's development and hosting

Mozilla Firefox, Portable Edition legacy editions works best with the PortableApps.com Platform

Version 115 (ESR) - Security Patches Through Present

Visit the Firefox Portable Legacy 115 homepage. (last version to support Windows 7/8/8.1)

Version 102 (ESR) - Security Patches Through Sep 12, 2023

Visit the Firefox Portable Legacy 102 - 102.15.1 homepage.

Version 91 (ESR) - Security Patches Through Aug 22, 2022

Visit the Firefox Portable Legacy 91 - 91.13.0 homepage.

Version 78 (ESR) - Security Patches Through Sept 8, 2021

Visit the Firefox Portable Legacy 78 - 78.15.0 homepage.

Version 68 (ESR) - Security Patches Through August 18, 2020

Visit the Firefox Portable Legacy 68 - 68.12.0 homepage.

Version 52 (ESR) - Security Patches Through June 21, 2018

Visit the Firefox Portable Legacy 52 - 52.9.0 homepage. (last version to support Windows XP/Vista)

Version 45 (ESR) - Security Patches Through June 13, 2017

Last Updated: 2017-04-22

Support

For help getting Firefox Portable up and running, visit Firefox Portable Support.

Download Details

• Publisher: Mozilla & PortableApps.com (John T. Haller)
• 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

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