I don’t have EasyPass but I think it is possible to make it to work with latest versions of
Firefox with compatibility addons.Maybe this one : https://addons.mozilla.org/en-US/firefox/addon/checkcompatibility/?src=search
It is also possible to manually change max version in install.rdf file in addon.
http://kb.mozillazine.org/Editing_an_add-on_to_change_its_compatibility
Hope this helps.