Browser

Firefox Developer Edition - Official links

A browser edition focused on web development, CSS inspection and frontend debugging.

Platforms

WindowsmacOSLinux

When to use it

Use it for cross-browser testing, CSS debugging, accessibility checks and frontend validation.

Recommended version

Use the latest Firefox Developer Edition release.

Platforms

Windows

macOS

Linux

Android

iPhone / iPad

Official links

Firefox Developer Edition

Firefox Dev

Official links

Install commands and guidance

Post-install verification

Related tools

Install commands and guidance

Windows / Official installer

Install Firefox Developer Edition from Mozilla

macOS / Homebrew

brew install --cask firefox-developer-edition

Linux / Official package

Install Firefox Developer Edition from Mozilla

Post-install verification

Open Firefox Developer Tools

Related tools

Firefox Dev

Google Chrome

A mainstream browser used for development, debugging, testing and daily web usage.

Visual Studio Code

A lightweight and extensible editor for web, backend, mobile and cloud development.

Verified offers

A space ready for legal offers, partners and promotion codes.

Offers will stay separate from the technical catalog: official source, validity date, sponsored mention when needed, and verification before publication.

Submit an offer View documentation

Official sources

No suspicious keys, no grey links, no unverifiable promise.

Promo codes

Each code can have a date, source, platform and verification status.

Monitoring

The backend can check URLs every night and trigger an alert if something changes.

Back to downloads

Firefox Developer Edition

A browser edition focused on web development, CSS inspection and frontend debugging.

Back to downloads Tools