I just tested it on Firefox Mac and it worked, could you post the contents of the JavaScript console when it is reloading? Please include all relevant (non-facebook) errors, including the POST data (if it is sending). Also, please try in an incognito window.
I will not be updating this to work with IE, if you would like to have it compatible please feel free to adjust the code and make a pull request here: https://github.com/dangreenisrael/WP-Plugins
There in the code of your site that is causing the Error in Firefox.
You can see it in the error log.
TypeError: a.parseHTML is not a function
http://www.wpisrael.com/wp-content/plugins/woocommerce/assets/js/frontend/checkout.min.js?ver=2.1.5
DEBUG YOU CODE BEFORE YOU COMPLAIN ABOUT A PLUGIN
hello tlvwebdevelopment
That was just a basic worpress 3.8.1 (with twentyfourteen theme) and woocommerce plugin installation (this is just a testing site).
with no code changes.
it worked on chrome but not on firefox and ie.
had to remove a few days ago the gateway.
It works on my client’s site.
If you decide you need to take IsraCard in the end, I will be available for hire after Pesach and I can get something working for you in Firefox as well
http://tlvwebdevelopment.com