Hi, I am using 5.4 STABLE and am getting a core dump when I use the Helix Real Player 10 plugin for Firefox 1.0.4. The output from my /etc/libmap.conf is as follows; # Flash with Firefox [/usr/local/lib/linux-flashplugin6/libflashplayer.so] libpthread.so.0 pluginwrapper/flash6.so libdl.so.2 pluginwrapper/flash6.so libz.so.1 libz.so.2 libstdc++-libc6.2-2.so.3 liblstdc++.so.4 libm.so.6 libm.so libc.so.6 pluginwrapper/flash6.so # Acrobat 7.0 with Firefox [/usr/compat/linux/usr/local/Adobe/Acrobat7.0/Browser/intellinux/nppdf.so] libc.so.6 pluginwrapper/acrobat.so # Helix Realplayer with Firefox [/usr/local/lib/linux-mozilla/plugins/nphelix.so] libstdc++.so.5 libstdc++.so.4 libc.so.6 pluginwrapper/realplayer.so I used the examples in /usr/local/share/examples/linuxpluginwrapper/libmap.conf-FreeBSD5-stable as a guide for setting up the plugin. I checked /var/log/messages and found the following entry in reference to the core dump; Jul 9 21:15:15 localhost kernel: pid 674 (firefox-bin), uid 1001: exited on signal 6 (core dumped) Below is the last few lines of output after I use firefox to access a page which requires the plugin; Break: at file nsPresShell.cpp, line 3592 Block(h1)(1)@0x92242f0: line=0x92243f4 xmost=-1496865 For audio/x-pn-realaudio-plugin found plugin /usr/local/lib/linux-mozilla/plugins/nphelix.so LoadPlugin() /usr/local/lib/linux-mozilla/plugins/nphelix.so returned 92110e0 Calling realplay playeripc: Got command Version 1 firefox-bin in free(): error: chunk is already free Abort trap Any insight would be appreciated, caleb.