I am back to trying to get Java installed in Firefox. I am using Ubuntu 7.10. I discovered that I had downloaded the wrong package to start with. I had downloaded the RPM version which it turns out is a RedHat version. So, I started over by removing the old RPM download and downloaded the correct version. I changed the permission of the file to make it executable and ran the file. The self-extracting file ran flawlessly and created the expected subdirectories. I now have two copies of the file libjavaplugin_oji.so. The complete paths to them are:
/usr/java/jre1.6.0_03/plugin/i386/ns7-gcc29/libjavaplugin_oji.so and
/usr/java/jre1.6.0_03/plugin/i386/ns7/libjavaplugin_oji.so
I changed to /usr/lib/firefox/plugins and ran the command "ln -s /usr/java/jre1.6.0_03/plugin/i386/ns7/libjavaplugin_oji.so" to create a symbolic link .
I restarted the browser and made sure that both "Enable java" and "Enable javaScript" are checked under the browser preferences.
And the site that requires jave still won't run. I have used the installation test from the java site and it tells me that it is correctly installed. I am at a standstill now and don't know what else to try.