You can see what the Moz guys want in the bug report:
https://bugzilla.mozilla.org/show_bug.cgi?id=422916#c12
I understand that "install symbols for libc,..." means install an
instrumented version of libc etc, and I think that means installing the
-debuginfo packages. Is that right? Where do I get these for *10.2* The
ones referred to in http://en.opensuse.org/Bugs:An_application_crashed
don't match the version numbers of libc, etc - I assume I need earlier ones.
While wondering about that I ran, as suggested,
~/downloads/firefox_beta/firefox> ./run-mozilla.sh -g -d gdb firefox-bin
Extract from the output:
...
[Thread debugging using libthread_db enabled]
[New Thread -1235683088 (LWP 14072)]
...
<5 other threads start and finish>
Cannot find user-level thread for LWP 14072: generic error
(gdb) c
Continuing.
Cannot fetch general-purpose registers for thread -1235683088: generic error
(gdb) c
Continuing.
Cannot fetch general-purpose registers for thread -1235683088: generic error
And so on.
Googling on this error I find it's quite common - but no suggested
fixes. And ideas?