dropped submission on closed browsers.

is possible to receive data of unsubmitted data if a user fills a form an closes a tab or window before finishing the form can jotform capture the data and send it as dropped submission.

Unfortunately, it is not possible to receive the submission unless the Submit button is clicked. However, if you want the data to be saved on the form to avoid accidental closure of browser/tab you may consider enabling Auto-Fill feature on your JotForm. This feature helps the form-filling person to save the data on the browser storage so that the information entered can be accessed again by re-opening the form. Please be noted that this feature works only when the form is opened again on the same PC and same browser.

If you have many pages on your form then you may consider using session method to save the form. This method helps in accessing the saved information from other browsers/systems as well.

Using either method will help the user to save the information so that they can continue to fill the form later and submit it normally.

Hope this information helps!