Comment 44 for bug 431091

I had the same problem on i686 when launching an eclipse html editor, which seems to use xulrunner under the covers. I was able to get around this with a simple symlink hack that I've seen elsewhere.

cd /usr/lib
sudo ln -s libstdc++.so.6 libstdc++.so.5
mark@flimflam:/usr/lib$ ls -l libstd*
lrwxrwxrwx 1 root root 14 2010-02-24 06:09 libstdc++.so.5 -> libstdc++.so.6
lrwxrwxrwx 1 root root 19 2010-01-20 07:46 libstdc++.so.6 -> libstdc++.so.6.0.13
-rw-r--r-- 1 root root 962800 2010-01-10 10:53 libstdc++.so.6.0.13

My machine is running
mark@flimflam:/usr/lib$ uname -a
Linux flimflam 2.6.31-19-generic #56-Ubuntu SMP Thu Jan 28 01:26:53 UTC 2010 i686 GNU/Linux