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Mozilla Firefox Developer Edition, Portable

development web browser

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Version 89.0 Beta 1 for Windows, English
115MB download / 404MB installed
Notes | All Languages | Antivirus Scan | Details

Mozilla Firefox Developer Edition, Portable can run from a cloud folder, external drive, or local folder without installing into Windows. It's even better with the Platform for easy installs and automatic updates.

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

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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.


App Notes

The developer release will install alongside a standard Firefox Portable install in a FirefoxPortableDeveloper directory. Note that will release one version for each major version (example: 78b1 but not 78b2). 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."

Download Details

Open Source Initiative
  • Publisher: Mozilla & (John T. Haller)
  • Date Updated: 2021-04-22
  • Date Added: 2014-11-10
  • System Requirements: Windows 7, 8, 10 & WINE
  • App License: Open Source (MPL/GPL/LPGL under Mozilla EULA)
  • Source: Firefox Developer Edition, Launcher source included, Installer
  • MD5 Hash: efd5bb81963b1d5550e536518886177a (English)
  • SHA256 Hash: 4fa8762edc461c9d4751b19716b680e6d6253ac204d2dc943df3e686a8a1570d (English)

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