JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
We believe that if one user has a question, there could be more users who may have the same question. This is why many of our support forum threads are public and available to be searched and viewed. If you’d like help immediately, feel free to search for a similar question, or submit your question or concern.
Your forms should work fine does not matter the web browser you're using, although we recommend to use either Chrome or Firefox, forms work in Internet Explorer and Opera too.
Indeed I have checked your forms and I can see they are working in Chrome, Firefox, Internet Explorer and Opera, if you are experiencing any issue with loading your forms, please provide us the link to the form, we will be glad to check it for you.
Thank you! I'll let my colleague know.