Comment 7 for bug 230859

I double checked...these are the packages installed:
firefox-3.0-dbgsym and xulrunner-1.9-dbgsym
libgtk2.0-0-dbg
libnss3-0d-dbgsym
libnspr4-0d-dbg
libpango1.0-0-dbg
libcairo2-dbg
libc6-dbg

This is the command used:
gdb /usr/lib/firefox-3*/firefox 2>&1 | tee /tmp/gdb-firefox.txt
# someoutput
run
# run and reproduce crash
bt full
# full backtrace output
thread apply all backtrace full
# all threads full backtrace output

This was the outpug for the most recent crash:
GNU gdb 6.8-debian
Copyright (C) 2008 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and "show warranty" for details.
This GDB was configured as "i486-linux-gnu"...
(no debugging symbols found)
(no debugging symbols found)
(gdb) # someoutput
(gdb) run
Starting program: /usr/lib/firefox-3.0b5/firefox
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
[Thread debugging using libthread_db enabled]
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
[New Thread 0xb7d2e6c0 (LWP 6271)]
[New Thread 0xb5d33b90 (LWP 6274)]
[New Thread 0xb5519b90 (LWP 6275)]
[New Thread 0xb4c7bb90 (LWP 6276)]
[Thread 0xb4c7bb90 (LWP 6276) exited]
[New Thread 0xb447ab90 (LWP 6277)]
[Thread 0xb447ab90 (LWP 6277) exited]
[New Thread 0xb447ab90 (LWP 6278)]
[New Thread 0xb4c7bb90 (LWP 6279)]
[New Thread 0xb3c68b90 (LWP 6280)]
[New Thread 0xb2eebb90 (LWP 6281)]
[Thread 0xb4c7bb90 (LWP 6279) exited]
[Thread 0xb3c68b90 (LWP 6280) exited]
[Thread 0xb5d33b90 (LWP 6274) exited]
[Thread 0xb2eebb90 (LWP 6281) exited]
[Thread 0xb447ab90 (LWP 6278) exited]
[Thread 0xb5519b90 (LWP 6275) exited]

Program exited normally.
(gdb) # run and reproduce crash
(gdb) bt full
No stack.
(gdb) # full backtrace output
(gdb) thread apply all backtrace full
No registers.
(gdb) # all threads full backtrace output
(gdb) quit
(gdb) quit
(gdb) quit
(gdb) quit
(gdb) quit
(gdb) quit
(gdb) quit
(gdb) quit
(gdb) quit
(gdb) quit
(gdb) quit
(gdb) quit
(gdb) quit
(gdb) quit
(gdb) quit
(gdb) quit