Firefox 3.6 versions only work with the Next Generation Java Plugin.

http://java.sun.com/javase/downloads/index.jsp#jdk (you need JRE) NOTE]: The Firefox 3.6 browser requires Java SE 6 Update 10 or later. Otherwise, Java-based web applications will not work.

http://java.com/en/download/faq/firefox_newplugin.xml
http://java.sun.com/javase/6/webnotes/install/jre/manual-plugin-install-linux.html

Please pay attention and be aware that this error concerns ibm java; the answer is available here: (http://www.ibm.com/developerworks/forums/thread.jspa?threadID=337317&tstart=0)

incomptability between ibm java sdk6 and firefox 368 Posted: Aug 13, 2010 06:48:05 AM Click to report abuse... Click to reply to this thread Reply Firefox368 now needs this plugin libnpjp2.so as described by oracle (http://www.oracle.com/technetwork/java/javase/manual-plugin-install-linux-136395.html). This plugin is not available in ibmjavasdk6 ther

Posts: 3 Registered: Oct 20, 2009 08:31:26 AM

Re: incomptability between ibm java sdk6 and firefox 368 Posted: Aug 13, 2010 06:52:34 AM in response to: ther in response to: ther's post Click to report abuse... Click to reply to this thread Reply Now realised that this plugin is located in /path/to/java/jre/lib/i386/, so a symbolic link was created. Documentation should be changed accordingly.