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.
Sometimes there may be browser incompatibility issues with your form, it could be due to the usage of oudated browser versions. However, our forms work well with most of browsers, the only times that forms do not work properly is when the browser version is too old.
I have been using some of the recent version of Fire Fox to test my and users' forms , but forms have worked properly. Could you please let us know which version of FireFox you are using? If it is an old version, kindly try updating it, that may help as you state that in other browser like Chrome it works well.
We will wait for your reply.