The Fire Toolbox is a third-party tool that enables you to tweak, mod, and hack your Amazon Fire Tablet, all without affecting your warranty (according to XDA developers). This is because it doesn’t alter the system partition. (resetting the device to factory settings can reverse any changes made using this utility.
Jailbreaking & rooting the Amazon Fire Tablet HD tablets are much easier than it used to be. You can download and install an app called Fire Toolbox. This will allow you to modify the appearance and features of your Amazon tablet in a matter of minutes.