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Mozilla Firefox Developer Edition, Portable

development web browser

Download from PortableApps.com

Version 140.0 Beta 1 for Windows x64, English
68MB download / 240MB 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)Download44bf337df4c3a547b70c3451883ccb8ba57cde51cc24812da6718fe48d8b6456
Chinese (Traditional)正體中文 (繁體)Download237569cdce5df16bfb97ca4ba29780684494a24085680a7bff13347909e7d7cf
EnglishEnglishDownloadc00d7781969cc0dcb2b188544d90e4d452c8c1d6bfca3776a1c68bcdef6485e3
FrenchFrançaisDownload85e6d45aca52a58871d707237205a86748e7264ec14b5c939e4227e92c4f30f1
GermanDeutschDownloade279c0536e36763f909cf2fac6049a489911aa4c908a4113209d3f4e7d4d77f5
HungarianMagyarDownloada8f86a03af6ac0eda3452f26f0d0af99f5a9d2efa4497fbfb9c6c4ca12da50a0
ItalianItalianoDownload47634017f587f0e9032aaefce1e77b7f7b3e3d020b6fb24cddb9fb94ae5f4efd
Japanese日本語Downloadb7892077a2ad37b5cdccca89e5443fd104cd4619759150212211353d7372e727
PolishPolskiDownload0431ddeed61322895f4169b5272f38cc4ab34feb193f7abd162779627ea1b395
Portuguese (Brazilian)Português (do Brasil)Downloadba72f1a9e3e8365f9e19719b9936e5d3a810f52787772fa61a5932482b16d6cb
RussianРусскийDownload9feaadef6ace9573cf25ec3a76f24530c6462038c90baf23d4fe814f91f1074a
Spanish (International)Español (internacional)Download27c4d151ef0a8c1236bdeae4558ca711910d3842ac1c1da007181d237960bd4d

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: 2025-05-28
  • Date Added: 2014-11-10
  • System Requirements: Windows 10, 11 & WINE (64-bit Only)
  • App License: Open Source (MPL/GPL/LPGL under Mozilla EULA)
  • Source: Firefox Developer Edition, Launcher source included, PortableApps.com Installer
  • SHA256 Hash: c00d7781969cc0dcb2b188544d90e4d452c8c1d6bfca3776a1c68bcdef6485e3 (English)

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