Firefox Developer Edition browser

This page was last updated at: Apr 18, 2026

Firefox Developer Edition is a developer focused Desktop web browser and supports the Linux, macOS, Windows operating systems. It is developed by Mozilla Foundation. It has been developed for about 9 years since launching in 2017.

Neither the release dates or latest version numbers of Firefox Developer Edition are displayed on the download page, this makes it very hard to determine the last time it was updated. The longer a web browser goes without receiving updates, typically the less secure it is.

About Firefox Developer Edition

Browser URL www.firefox.com/en-GB/channel/desktop/developer/
Browser made by Mozilla Foundation
Development Status Active
The browser is actively maintained and developed
Launched 2017
Last Updated Unknown
Release dates or versions are not published, so this can't be determined.
Operating Systems Linux, macOS, Windows
Device platform Desktop
Rendering Engine Gecko
Wikipedia Article https://en.wikipedia.org/wiki/Firefox

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