Mozilla Firefox Developer Edition is a free, multiplatform and open source version of the award-winning and highly acclaimed Mozilla Firefox web browser, specifically designed for web developers who want the best tools to create modern and powerful websites.
It includes a wide range of tools for web development, including Page Inspector, Web Console, JavaScript Debugger, Network Monitor, Web Audio Editor, Style Editor, and IDE (Integrated Development Environment).
Features at a glance
In addition to the standard features that are present in the main Mozilla Firefox edition, this flavor introduces an extra button on the main toolbar, allowing web developers to quickly access various tools that help them build a better Web.
Another button will let web developers easily develop, deploy and debug applications for Mozilla’s Firefox OS mobile operating system directly in the web browser or on a device powered by Firefox OS. This feature is called WebIDE.
The Sync function just got revamped in the Developer Edition of Mozilla Firefox, allowing users to keep all of their data (bookmarks, passwords, open tabs) in sync across desktop and mobile browsers.
Being based on an upcoming version of the Mozilla Firefox web browser, the Developer Edition also introduces the revamped Preferences (about:preferences) panel, which opens in a new tab, giving users quicker access to general settings, content settings, applications settings, privacy settings, security settings, sync and other advanced settings.
Availability and supported operating systems
Just like current versions of the Mozilla Firefox web browser, the Developer Edition is distributed for free as pre-built binary packages, supporting all GNU/Linux distributions and running on both 32-bit (i386) and 64-bit (x86_64) computers.
In addition to Linux, the Mozilla Firefox Developer Edition web browser is also officially supported on the Microsoft Windows and Mac OS X operating systems. Be aware though, that it is in early development and bugs are present.
What is new in this release:
- Improved private browsing windows block some web page elements that could track your web behavior across sites
- GTK3 integration (GNU/Linux only)
- Hardware acceleration for 2D canvas content (Mac OS X only)
- Indicator added to tabs that play audio with one-click muting (Adobe Flash supported since version 19)
- Process separation enabled by default in Developer Edition
- Intuitive Control Center contains restyled site security, site identity and private browsing
- Improved performance on interactive websites that trigger a lot of restyles
- Add-on signing enforcement
- Implemented ES6 Reflect
- Implemented Push API via Service Workers
- Asynchronous call stacks now allow web developers to follow the code flow through setTimeout, DOM event handlers, and Promise handlers.
- Remote website debugging over WiFi (no USB cable or ADB needed)
- Configurable Firefox OS Simulator in WebIDE, to simulate reference devices like phones, tablets, even TVs
- CSS filter presets in the Inspector
What is new in version 37.0 Alpha 2:
- Firefox 3.6.16 blacklists a few invalid HTTPS certificates.
What is new in version 3.0.13 Beta:
- Fixed several security issues.
- Fixed several stability issues.
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