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Mozilla Firefox, Portable Edition Beta and Nightly

Mozilla Firefox, Portable Edition Test Versions are test versions of the popular Firefox web browser or test versions of the Gecko layout engine bundled with a PortableApps.com Launcher as a portable app that are being made available for testing purposes only, and are intended for web application developers and our testing community. For everyday use, please use Mozilla Firefox, Portable Edition.

You can also install the latest nightly build.

Mozilla Firefox, Portable Edition 41.0 Beta 1

The current Firefox Beta release. From Mozilla: "This is pre-release software: you may encounter compatibility problems with some websites and add-ons."

Download Firefox Beta Portable

Version 41.0 Beta 1 for Windows, Multilingual
17MB download / 77MB installed (Details)

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Install Note: This will install alongside a Mozilla Firefox, Portable Edition installation by default in a FirefoxPortableTest directory. The installer supports upgrading existing stable installations by manually changing the install location, though this is not recommended.

Mozilla Firefox, Portable Edition 41.0 Beta 1 Localizations

Language Version Link
Arabic عربي 41.0 Beta 1 Download Mozilla Firefox, Portable Edition Beta
Chinese (Simplified) 中文 (简体) 41.0 Beta 1 Download Mozilla Firefox, Portable Edition Beta
Chinese (Traditional) 正體中文 (繁體) 41.0 Beta 1 Download Mozilla Firefox, Portable Edition Beta
Czech Čeština 41.0 Beta 1 Download Mozilla Firefox, Portable Edition Beta
Dutch Nederlands 41.0 Beta 1 Download Mozilla Firefox, Portable Edition Beta
English English 41.0 Beta 1 Download Mozilla Firefox, Portable Edition Beta
EnglishGB English (British) 41.0 Beta 1 Download Mozilla Firefox, Portable Edition Beta
French Français 41.0 Beta 1 Download Mozilla Firefox, Portable Edition Beta
German Deutsch 41.0 Beta 1 Download Mozilla Firefox, Portable Edition Beta
Hungarian Magyar 41.0 Beta 1 Download Mozilla Firefox, Portable Edition Beta
Italian Italiano 41.0 Beta 1 Download Mozilla Firefox, Portable Edition Beta
Japanese 日本語 41.0 Beta 1 Download Mozilla Firefox, Portable Edition Beta
Korean 한국어 41.0 Beta 1 Download Mozilla Firefox, Portable Edition Beta
Polish Polski 41.0 Beta 1 Download Mozilla Firefox, Portable Edition Beta
Portuguese (Brazilian) Português (do Brasil) 41.0 Beta 1 Download Mozilla Firefox, Portable Edition Beta
Portuguese (Portugal) Português (Europeu) 41.0 Beta 1 Download Mozilla Firefox, Portable Edition Beta
Russian Русский 41.0 Beta 1 Download Mozilla Firefox, Portable Edition Beta
Spanish (Spain) Español (de España) 41.0 Beta 1 Download Mozilla Firefox, Portable Edition Beta
Spanish (International) Español (internacional) 41.0 Beta 1 Download Mozilla Firefox, Portable Edition Beta

Mozilla Firefox, Portable Edition Aurora is Now Developer

Mozilla Firefox Aurora is now Firefox Developer Edition

Mozilla Firefox, Portable Edition Nightly 43.0 Alpha 1 Pre (32-bit and 64-bit)

Download Firefox Nightly Portable

Version 43.0 Alpha 1 for Windows, Multilingual
17MB download / 77MB installed

Note that the 64-bit version below will not work on 32-bit Windows machines. PortableApps.com does not normally publish or recommend 64-bit-only portable apps as per our policies and recommendations on 64-bit portable apps. An exception is made specifically for testing of the 64-bit Firefox Nightly builds.

Download Firefox Nightly x64 Portable

Version 43.0 Alpha 1 x64 for Windows, Multilingual
17MB download / 77MB installed

Support

osi_certified.pngThough there is no support specifically for this test release, the pages for Firefox Portable Support should help.

Download Details

  • Publisher: PortableApps.com (John T. Haller) and Mozilla
  • System Requirements: Windows XP/Vista/7/8/10, Wine on Linux/UNIX
  • License: Free / Open Source (Launcher: GPL, Firefox: MPL/GPL/LPGL under Mozilla EULA)
  • Source Code: Launcher source (included), Firefox

Mozilla®, Firefox® and the Firefox logo are registered trademarks of the Mozilla Foundation and are used under license.