What is JotForm?
JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.

At JotForm, we want to make sure that you’re getting the online form builder help that you need. Our friendly customer support team is available 24/7.

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.

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    Browser crashing when the site is viewed in Firefox

    Asked by BWG on May 07, 2016 at 09:20 PM

    We have just noticed that when our client's website is accessed via Firefox, it reports an error that seems to be related to Jotform.

    It says:


    Warning: Unresponsive Script

    A script on this page may be busy, or it may have stopped responding. You can stop the script now, open the script in the debugger, or let the script continue.



    Script: https://cdn.jotfor.ms/static/prototype.forms.js:252


    We are not seeing this problem in Safari or Chrome (haven't checked IE)

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    JotForm Support

    Answered by Kiran on May 07, 2016 at 10:07 PM

    I'm able to replicate the issue at my end when I open the web page using Firefox. However, when I tried to open the form using the direct JotForm URL, it seems to be working fine. It looks like there is a conflict with other scripts on the web page and causing this issue. Could you try embedding the form using iframe embed code and see if that helps. You may get the iframe embed code of your JotForm by following the guide below:


    Please get back to us if you need any further assistance. We will be happy to help.