Firefox 29 will be a landmark release because of the long awaited Australis UI. If you want to give the new UI a try then download Firefox 29 Beta, it looks awesome!
- NEW Australis user interface
- NEW first-run experience
- NEW Firefox Accounts sync your personal profile across many devices
- Firefox for Windows 8 touch preview (still available)
- Fix common scheme typos
- Gamepad API finalized and enabled
- WebVTT support
According to Mozilla Wiki, Firefox 29 will be moved to RELEASE on April 29, 2014.