I'm using MacOSX 10.5.8 and the default Java provided by Apple (e.g. /usr/bin/java -> /System/Library/Frameworks/JavaVM.framework/Versions/Current/Commands/java). My web browser is Firefox 3.6.12.

I'd like to view the Java console to debug some Java applets which I access with Firefox.

How can I enable the Java console?

1 Answer 1


This is not done via any Firefox configuration option, but an account wide Java setting:

Open the Java Preferences utility which you can find in Applications -> Utilities.

There, under the Advanced tab, and "Java console", choose "Show console". alt text

  • I have tried this, and I still do not see a console. I believe that the console may be active, but does not automatically become visible when I open a Java applet. Commented Nov 19, 2010 at 19:30
  • 1
    Well, eventually this did work. I had to change "Run applets:" back to the default "Within Browser Process', and now the console works. I did try both options before, and neither worked. Commented Nov 19, 2010 at 20:56
  • Ah, I didn't know about the "Run applets" setting, but glad you got it working :)
    – Jonik
    Commented Nov 20, 2010 at 3:03

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