First, if ActiveX controls are used to activate the JavaScript, then Firefox won't be able to use them UNLESS you install the ActiveX plugin for Firefox. I'm not sure that an ActiveX plugin has been created for the newest version of Firefox though.

Next, make sure you have installed/updated to Firefox and enabled JavaScript in Firefox by clicking on "Tool/Options/Content tab", then place a CHECK mark in the "Enable JavaScript" box.

Hope this helps.