Ok. I think I filled a bug report some time ago, but nobody replied.
I can't find anything about this in the Classpath bugzilla, but you do have two past bugs that were both resolved...
You think it's a Firefox problem, right? So if I use gdb, I get the backtrace:
<snip>
But this is a Firefox problem, right? So there's nothing you can do, right?
Actually, yes, given that backtrace I do think it might be a Firefox problem. Notice how gcj and/or the appletviewer don't appear anywhere at all in that list; they are all glib and firefox libraries.
But since you already knew I'd say that, and are still convinced it's a plugin problem, what leads you to this conclusion? Perhaps I'm missing something? It's possible that the plugin isn't cleaning up after itself properly and causing firefox to crash, but that's an unsubstantiated theory...
Now that I look at it, this backtrace looks very similar to your previous bug report that you closed as invalid: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29675 - could it be the same, or a similar, issue?
The site is wwwss.bradesco.com.br and it's secured. How can I download it?
If it's a secured site, it might not be possible (or at least very difficult). Debugging problems exposed by closed-source applets is a huge pain.
Cheers, Francis