Forms Designed in Firefox don't work in Internet Explorer?

I primarily use Firefox while using Jotform.  After receiving tons of complaints from customers, I tried to view each page in Internet Explorer and the form looked so bad that it was not even usable.  I then logged into Jotform in Internet Explorer and tried to open each form and not a single form would open up in Internet Explorer while logged in on Jotform?

I have a firefox window open, logged into Jotform, and trying to modify the form that looks perfectly fine in Firefox while at the same time viewing the form online thru Internet Explorer and constantly making a change on Firefox, saving it and then refreshing it in IE to see if it helps any, it has become a very tiresome and frustrating situation.

Does anyone have a suggestion as to why any form that I develop in Firefox looks crappy in IE and why I can't edit my form while logged into Jotform through Internet Explorer?

I have opened your forms in IE 11, and they appear similar to how they look in Firefox:

Please do note that Firefox and Chrome browsers are more standard-compliant, so they generally render web pages a little better than Internet Explorer does. Still there are always some differences in how different browsers render the same design, so there will be slight differences even between Chrome and Firefox.

If the forms look very much different for you in IE, could you please let us know which version of IE you are using when you see this, and on which form is this happening?

Attaching a screenshot of the problem directly to your post might help, and you can attach images to your posts by following this guide.

At the moment, I only see some differences in how IE is rendering the extremely light box-shadow on your forms such as this form 52661199879979, but I do not see much difference otherwise in IE 11.

The forms display bad in old versions of IE, such as IE 8, because your forms are using modern CSS effects, such as box-shadows, gradients and rounded corners, which are not supported by old browsers.

I hope this helps, we will await your response.