HERE IS THE DOWNLOAD LINK:dl-developer.sonymobile.com/code/copylefts/ffos_experimental.tar.bz2
How to flash Firefox OS on Xperia™ E
Now that you have a basic understanding of Firefox OS, and if you’re ready to start tinkering with it on an Xperia™ device (for now, Xperia™ E), the next step is to flash Firefox OS on it. Before you flash this experimental ROM, please consider the following carefully:
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.
This software can be flashed on an Xperia™ E that has similar hardware specifications as the initial scope of the first version of Firefox OS and is therefore a natural candidate.
Flash Firefox OS on your Xperia™ E by performing the following steps:
Unlock the boot loader using our unlock boot loader service. Note that the possibility to unlock a device can sometimes be restricted due to operator restrictions. Also note that once you’ve unlocked your phone, you will not get any official software updates from Sony.
Download and install the flash tool for Xperia.
Start the flash tool and connect your phone as described in the flash tool instructions. When you connect your unlocked Xperia™ E, the Firefox OS software will be available to flash. There is also a standard Sony software version that you can flash, if you want to go back to Android™ from the Firefox OS software.
If everything went well, your device is now ready to boot with Firefox OS. Turn on the power and after the initial boot sequence, you can start to explore Firefox OS.
IF THIS WORKS FOR YOUR XPERIA E PLEASE HIT THANKS