If you can't wait to try out the Firefox OS, and you happen to have a Sony Xperia E laying around, you can jump in right now and give it a go.

Sony has announced that a build of the Firefox OS has been released for the Xperia E that will allow developers to start tinkering with the software to get ready for its eventual release. However, this is not a completely stable version of the OS, and it is certainly not meant to become your daily driver. Here is the checklist of warnings from Sony before you attempt this.

  • Before you unlock the boot loader, make sure that you have read and understood that unlocking the boot loader may void the warranty of your device.
  • You must be using an unlocked Xperia™ E. It will not work on a locked Xperia™ E.
  • You should be an advanced developer with extensive knowledge in how to flash and switch between different ROMs. If you are a consumer without these developer skills, then we strongly recommend you not do try this as you may damage your phone.
  • Some of the features are not switched on or implemented:
    • No radio connectivity available, due to that this software has not passed certification and type approval. This means that you cannot make any phone calls or use Wi-Fi or Bluetooth.
    • The functionality of the SD card might be unstable.
    • The touch sensitivity is not fully calibrated.

If you're still brave enough to give this a go, check out the link to Sony and give it a go.