I’m giddy! I found this post on mozdev.org which was magical.
[evan@ehoffman ~]$ java -version java version "1.6.0_17" Java(TM) SE Runtime Environment (build 1.6.0_17-b04) Java HotSpot(TM) 64-Bit Server VM (build 14.3-b01, mixed mode)
[root@ehoffman plugins]# uname -a Linux ehoffman 18.104.22.168-64.fc11.x86_64 #1 SMP Fri Sep 25 04:43:32 EDT 2009 x86_64 x86_64 x86_64 GNU/Linux [root@ehoffman plugins]# pwd /usr/lib64/mozilla/plugins [root@ehoffman plugins]# ln -s /usr/java/jdk1.6.0_16/jre/lib/amd64/libnpjp2.so
The main thing I was missing was that the plugin isn’t libpluginjava_oji.so, or whatever I thought it was, but libnpjp2.so. Once I created the symlink into /usr/lib64/mozilla/plugins it worked (as verified on http://www.java.com/en/download/help/testvm.xml and http://www.java.com/en/download/installed.jsp).
That’s all it takes to get the Sun Java plugin working in Firefox on Linux.