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Mozilla Firefox Developer Edition, Portable

development web browser

Download from PortableApps.com

Version 150.0 Beta 2 for Windows x64, English
89MB download / 315MB installed
Notes | All Languages | Antivirus Scan | Details

Runs anywhere (cloud, removable, local) without 'installing'. Use the PortableApps.com Platform for easy installs and automatic updates.

Also Available: Firefox Stable, Firefox ESR (Extended Support Release), Firefox Beta, Firefox Nightly, Legacy versions

Make a Donation - Support PortableApps.com development & hosting, Make a Donation - Support Firefox Developer Edition development

Description

Mozilla Firefox is a fast, full-featured web browser that's easy to use. The Developer Edition adds in debugging and IDE tools as well as a unique theme to the standard beta channel of Firefox.

Learn more about Firefox Developer Edition...

Localizations

LanguageLinkSHA256 Hash
Chinese (Simplified)中文 (简体)Download864087bf95abbb02fbec3232ab0fc95293f6fb153c473c8ffce93adba52e9836
Chinese (Traditional)正體中文 (繁體)Download78cad672192f8a91ff534f7eda0295acc351cc09ecbd70be5ea2ffc498d48b86
EnglishEnglishDownload659feee50f76a1dcf606b0681c925f32b1e8c32b07a8c1b55d1f61da2bda1183
FrenchFrançaisDownload3cc3323aebe21de30a07bcf4c5144343554d89aa19ea88dbf9ad9e84039b7ce6
GermanDeutschDownloadf488434457392ae322d3bff6b500d6987c7e81e238d38b12f6daa9427f89ce99
HungarianMagyarDownload37afa0de85170fb00898fce9af0cb0c3d434a94182d6c5412f003501a4813ea4
ItalianItalianoDownload3eda989b37b44839eadfda1a1da047cdbe707c89e4cedd69e8fd5807d76c47d4
Japanese日本語Downloadd7f8988b10f0fbfa834576421fca6bf7ac1c97ec846fe6bbcf44653a9438236e
PolishPolskiDownload75928fafc612cf21ecfae41f01861e369e9f79abdcebd0482df5aadac59ac257
Portuguese (Brazilian)Português (do Brasil)Download262ce2481f6951ca132e1e3af3809fc6f1da88013768b24bdb06925a5aedc764
RussianРусскийDownload5dde68067884729d049f8ec97bf370e504ec330a97203d5ba672b4edf1d890f4
Spanish (International)Español (internacional)Download500d2ce51bd64b3abe52c7613b2d1ec3ef37a8301560b048f2fed41ad8dd8a84

App Notes

The developer release will install alongside a standard Firefox Portable install in a FirefoxPortableDeveloper directory. Note that PortableApps.com will release one version for each major version (example: 99b1 but not 99b2). For updates within each major release, use the internal updater. From Mozilla: "This is pre-release software: you may encounter compatibility problems with some websites and add-ons."

Support

For help with this app, please see the following:

Download Details

Open Source Initiative Approved License
  • Publisher: Mozilla & PortableApps.com (John T. Haller)
  • Date Updated: 2026-03-28
  • Date Added: 2014-11-10
  • System Requirements: Windows 10, 11 & WINE (64-bit Only)
  • App License: Open Source (MPL under the Mozilla EULA)
  • Source: Firefox Developer Edition, Launcher source included, PortableApps.com Installer
  • SHA256 Hash: 659feee50f76a1dcf606b0681c925f32b1e8c32b07a8c1b55d1f61da2bda1183 (English)

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