Comment 3 for bug 123646

the crash will always reproduce it doesn't matter how you start it. before it loads all the way it crashes.

i have not installed any extensions or plugins at all

when you type firefox in the terminal it says :
$firefox

***MEMORY-WARNING***: firefox-bin[17322]: GSlice: g_thread_init() must be called before all other GLib functions; memory corruption due to late invocation of g_thread_init() has been detected; this program is likely to crash, leak or unexpectedly abort soon...
Segmentation fault (core dumped)

i'm installing the stuff debuging stuff now and will report back after it's all installed