Even with the 32-bit libraries installed, Mozilla cannot load the java plugin.
Please add some specifics about your system - CPU architecture, 'emerge info' output, etc.
The system is an AMD Athlon64. 32-bit emulation is enabled in the kernel Everything compiled from source is 64-bit code. emerge info output: Portage 2.0.49-r15 (default-amd64-1.4, gcc-3.3.2, glibc-2.3.2-r9, 2.4.21) ================================================================= System uname: 2.4.21 x86_64 4 Gentoo Base System version 1.4.3.12 ccache version 2.3 [enabled] ACCEPT_KEYWORDS="amd64 ~amd64" AUTOCLEAN="yes" CFLAGS="-O3 -pipe" CHOST="x86_64-pc-linux-gnu" COMPILER="gcc3" CONFIG_PROTECT="/etc /var/qmail/control /usr/share/config /usr/kde/2/share/config /usr/kde/3/share/config /usr/X11R6/lib/X11/xkb" CONFIG_PROTECT_MASK="/etc/gconf /etc/env.d" CXXFLAGS="-O3 -pipe" DISTDIR="/usr/portage/distfiles" FEATURES="sandbox ccache autoaddcvs" GENTOO_MIRRORS="http://ftp.gentoo.skynet.be/pub/gentoo/" MAKEOPTS="-j2" PKGDIR="/usr/portage/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/usr/local/portage" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="amd64 oss 3dnow apm avi crypt encode foomaticdb gif jpeg libg++ libwww mmx mpeg ncurses pdflib png quicktime spell sse truetype xml2 xmms xv zlib alsa gdbm berkdb slang readline aalib tcltk guile X sdl gpm tcpd pam ssl perl python imlib oggvorbis gnome gtk qt motif opengl mozilla cdr apache2 cups dvd dvdr fam gstreamer gtk2 moznocompose moznoirc moznomail ppds xml -arts --cups --java -kde -mikmod -nls --qt -esd"
You'll need either a 64bit java plugin or a 32bit mozilla; 32bit objects can't be loaded into 64bit applications - brad_mssw is involved in much of the amd64 work and has discussed such things with me, so I'm attaching him to the bug.
It's not possible to load a 32bit object into a 64bit object/executable. Never will be. Don't expect any pre-made 32bit plugins to work in your self-compiled applications. I'll add this stuff to my technotes this weekend to make it absolutely clear. Closing the bug as CANTFIX -Brad