Comment 5 for bug 397729

If it can help you I send this terminal output:

marco@marco-ubuntu:~$ firefox -g
/usr/bin/gdb /usr/lib/firefox-3.0.11/firefox -x /tmp/mozargs.gFznbi
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)
(gdb) run
Starting program: /usr/lib/firefox-3.0.11/firefox
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[Thread debugging using libthread_db enabled]
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[New Thread 0xb7d6c6d0 (LWP 5165)]
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---Type <return> to continue, or q <return> to quit---
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---Type <return> to continue, or q <return> to quit---
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---Type <return> to continue, or q <return> to quit---
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---Type <return> to continue, or q <return> to quit---
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[New Thread 0xb5a37b90 (LWP 5168)]
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[New Thread 0xb5162b90 (LWP 5169)]
(no debugging symbols found)

[New Thread 0xb48fbb90 (LWP 5170)]
[Thread 0xb48fbb90 (LWP 5170) exited]
[New Thread 0xb48fbb90 (LWP 5171)]
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---Type <return> to continue, or q <return> to quit---
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[New Thread 0xb3ebeb90 (LWP 5172)]
[Thread 0xb3ebeb90 (LWP 5172) exited]
[New Thread 0xb36bdb90 (LWP 5173)]
(no debugging symbols found)
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[New Thread 0xb3ebeb90 (LWP 5174)]
[New Thread 0xb2dcab90 (LWP 5175)]
[New Thread 0xb25c9b90 (LWP 5176)]
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sh: acroread: not found
[New Thread 0xaff33b90 (LWP 5187)]
[New Thread 0xaf732b90 (LWP 5188)]
[New Thread 0xaeb91b90 (LWP 5189)]
[Thread 0xaeb91b90 (LWP 5189) exited]
[New Thread 0xaeb91b90 (LWP 5190)]

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0xb7d6c6d0 (LWP 5165)]
0xb7dea1e9 in memmem () from /lib/tls/i686/cmov/libc.so.6
(gdb)