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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    How to lock browser when using Lightbox Form

    Asked by Prafull vyas on February 08, 2015 at 01:24 PM


    Very nice tutorials but I want to lock whole browser when the lightbox appear please can you tell me how this is possible that lightbox working as js alert.

    This is a re-post of a comment on How to Auto-popup a Lightbox Form

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    JotForm Support

    Answered by jonathan on February 08, 2015 at 06:00 PM

    It will require using the full source code and editing of the lightbox script -- which is a bit complex.

    Similar to what was described here.


    It is actually simpler to just use the Pop-up script embed.


    The Pop-up embed will not close the form even when you click outside of it.

    Hope this help. Let us know if you need further assistance