Download Beta and be part of the next version of Firefox.

                         1. Test Features

Try out the latest performance, customization and security enhancements almost ready for prime time.

                            What’s New

                                             NEW

1-A set of new improvements to the Firefox user interface (learn more)

2-An interactive onboarding tour to guide users through new changes

 3-A redesigned and improved customization mode

4-The ability to set up Firefox Sync by creating a Firefox account (learn more)

5-Gamepad API finalized and enabled (learn more)

                                         CHANGED

1-navigator.plugins is no longer enumerable, for user privacy

                                        DEVELOPER

1-'box-sizing' (dropping the -moz- prefix) implemented

2-SharedWorker enabled by default

3-CSS3 variables implemented

4-<input type=number> enabled

5-<input type=color> implemented and enabled

6-Promises enabled by default

7-Console object available in Web Workers

8-Add-on bar has been removed, content moved to navigation bar

9-Enabled ECMAScript Internationalization API

                                             FIXED

Echo cancellation on apprtc.appspot.com fails (974537) 

                                                                

                     2. Refine & Polish

Give us feedback to help us put the final tweaks on performance and functionality in a stable environment Learn More »

 

                            3. Do Your Part

Have an impact on the next version of Firefox and the 450 million people who use it every day.

                                Download