Many people tend to immediately think of custom ROMs and kernels as the be-all and end-all of development that happens on XDA, and the bootloader of our devices is often overlooked. However this is not the case over in the Kindle Fire section. FireFireFire is a custom bootloader originally developed by XDA Senior Member pokey9000, which offers increased functionality over the stock bootloader in 3 ways:
It allows you to access recovery mode by simply pressing the power button again after the device begins to boot, thus negating the need for cumbersome button combinations.
It also automatically enables fastboot when the device is powered on, eliminating the need for idme bootmode, special cables or the command required by the stock bootloader on every run of fastboot.
It is also possible to use FireFireFire to repartition the devices memory and fix a bricked device when used in conjunction with ReKindle. (Be warned though that the method involves some AdamOutler style tinkering with the internals of your device)
Unfortunately it seems that pokey9000 is no longer working on FireFireFire. However, the modification lives on, and the torch has been passed to Senior Member kinfauns. His version brings a few changes that you may prefer to the original, namely a different boot logo and a shorter fastboot window which will shave 5 seconds off the boot time.