Sing text with certificate from Firefox keystore

Hi,I need to sign a text with a certificate stored in Firefox keystore using an applet (online signature). Has someone achieved this before?Thanks in advance.
[179 byte] By [pedropnuneza] at [2007-11-26 21:54:52]
# 1
http://finger-in-the-eye.blogspot.com/2007/03/cmo-acceder-al-keystore-de-firefox-con.html
pedropnuneza at 2007-7-10 3:50:10 > top of Java-index,Security,Other Security APIs, Tools, and Issues...