Can you not set that from the Java applet in the Control Panel?

No you can't. That was a second place I've looked, it's a Firefox's option. Firefox asks that question (when it's enabled), not java. I was able to restore this dialog few months back, but I can't find that option now.

UPDATE: It's java related, not Firefox as I assumed.

Try to clear the Java cache.

• http://www.java.com/en/download/help/5000020300.xml - How do I clear the Java cache? - 1.5.0, 6.0

Thanks for your suggestion, but clearing java cache did not help.

Hi mitis77,

try from Control Panel (as finitarry suggest above) > open Java > Java Control Panel > Advanced tab > in Settings > Security > Mixed Code (sandboxed vs. trusted) security verification > check Enable - show warning if needed [ v ]

http://docs.oracle.com/javase/7/docs/technotes/guides/deployment/deployment-guide/jcp.html#advanced

thank you

Already done that, didn't help.

Anyway, was playing with settings, cleared all cache in browser and java and did the following: In java control panel: Security Tab -> Certificates -> Trusted Certificates -> User Tab -> Cleared all. Advanced Tab -> Security -> General -> unchecked "Don't prompt for client certificate selection when no certificates or only one exists".

In Firefox, about:config reset property "pref.advanced.javascript.disable_button.advanced" to default. (Now I don't see that property anymore?)

I don't really know, which one helped, but now the confirmation dialog appears!

Thank you everyone for help.

To avoid confusion:

• http://kb.mozillazine.org/JavaScript_is_not_Java