How do I enable Java in 64b Firefox?
 
This howto assumes using 64b CentOS and 64b Firefox and that 64b Java RE installed.
If Java is not installed, download the 64b rpm.bin -file from www.java.com and install it as root first.
  1. Login as guest.
  2. Open a terminal.
  3. Enter "/home/guest/.mozilla"
  4. If not exist plugins-folder, goto 5 else goto 6.
  5. Enter "mkdir plugins"
  6. Enter "cd plugins"
  7. Create a symbolic link: "ln -s
    /usr/java/latest/lib/amd64/libnpjp2.so libnpjp2.so"
  8. Open Firefox and go to www.javatester.org to verify that Java works with the browser.