I created an applet using Eclipse:
package gui;
public class MyApplet extends JApplet {
This applet needs two external jar\'s: proj.jar and
Unsigned applets are running in a 'restricted' sandbox, so to speak. More info here over at Oracle's documentation: http://docs.oracle.com/javase/tutorial/deployment/applet/security.html
My guess, much like the exception says, is that FBDriver.java:63 (inside Firebird ) is doing something that the JVM won't allow.
By the way, it is a bit odd to load a JDBC driver inside an applet, but I digres..