As of The Fourth Apprentice, Firestar has lost 5 lives, and he has 4 left,.
Firestar has not died yet but he has lost 7 lives.
Firestar only lost 1 life in the very first series. He was killed by Scrouge in the baattle of Bloodclan(The Darkest Hour)
Two
I think he has 2-3 left. He lost one while fighting Scourge, lost another in Firestar's Quest from the rat fight, another in ShadowClan territory when a tree fell on him back at the forest, another because of the Greencough. He lost one in The Fourth Apprentice. One in fighting Russetfur. And I don't know if he lost another fighting the Dark Forest. P.S.: I read only the books up to Fading Echoes.
Firestar lost a life in the battle of bloodclan when scourge clawed his head.
At the beginning of Fading Echoes, Firestar has four lives left because in Jayfeather's visit to Star Clan, Jayfeather saw that five of Firestar's live are in StarClan. By the end, when Russetfur takes one of his lives, he has three left.
As of now, Firestar has not lost his eighth life.
The Erins' haven't answered this question or shown any hint of it. I am guessing that he should have 4 - 7 lives left because he wasn't a leader as long as Firestar. Firestar has 2 or 3 lives left. In the BloodClan fight, he lost one, and in the end, Blackstar gets his 9 lives, while Firestar only has 8 lives left.
Yes. If a leader dies then he simply looses a life and comes back, unless he is on his last life. There are exceptions to this however. For example, Tigerstar lost all nine of his lives in a single blow from Scourge. It is possible that Firestar could die in a similar way. Firestar still has 3 lives left to lead.
6 or 7, because erin hunter said at the begining of The last hope he has 2 lives left... and i heard that his death seen has alredy been writen and it's true... :(
There where neally 120,000 lives lost!
no but he will die sooner or later no cat lives forever not even the grate Firestar