When a user tries to connect to SSL VPN by using Firefox 3.0 (32-bit) on Vista 64-bit, the SSL VPN applet fails to load. This is because Sun JRE 1.6 Update 12 additionally bundles a newer Java plug-in for Firefox, so some applets fail to load.
To work around this problem, disable the newer Java plug-in and roll back to the older plug-in as follows:
Open the Java Control Panel in one of the following ways:
Browse to <Install_Folder>\Java\jre6\bin, then run Javacpl.exe.
Selectand deselect .
Selectand make sure that option is enabled.
Restart the browser.