Firefox user profile trouble

[Shoden]

ok this happens everytime firefox crashes a window comes up asking me what firefox profile to use i tried clicking default first time wouldn't work because it was messed up so i made a new profile they both have seperate favourites and cookies and stuff how do i get the window back up? well thats what i'm hoping to get answered heres a screeny since everyone loves screenies :

[Meat Puppet]

nice screenie

[Shoden]

more evidence everyone loves screenies so you know how i can get that window up again?

[Yamaneko]

ctrl+alt+delete and kill the old Firefox process before opening a new one. That happens sometimes when Firefox crashes.

[Shoden]

so how do i get that window up again or how do i deliberatly crash firefox?