Firefox OS/TCP/Reset
From MozillaWiki
< Firefox OS | TCP
Resetting the tablet
Connect your tablet via USB to a PC with Android's ADB program installed.
1. run a command prompt
2. adb shell // No need to sudo as you have root access
3. wipe data
4. reboot
This will wipe all the data, in essence resetting the device to its default state when it first was shipped. The first time user experience will run again.
Warning! Do not turn off ADB debugging in the settings or this reset will not work again and you'll be unable to reset your tablet. Debugging is on by default.
