Honestly this just kinds of infuriates me so here it is, a one shot about him and his death.
Firestar's Death
The battle has raged for long and wide, and all four Clans have joined together to face the menace that was known as the Dark Forest.
In the midst of the ThunderClan camp, death was all around. Hollyleaf, Ferncloud, Mousefur, and many more. But of course, there was the great Firestar also...
He has just faced off against his archenemy, Tigerstar. The battle is dying down, but a storm is coming over the horizon, and now... as cats come to grieve their dead and the last vengeful enemies run from the dangers that surrounds them...
This tree falls down and hits Firestar square in the forehead. So there, the great leader goes. He went down as a Gary Stu, don't worry.
I cannot write anything but short one- shots..