How to save the Form and continue later in any of the browser?

... you documented that Continue Forms Later only works if you use the same browser you started with?  And that if the user unknowingly switches browsers, then tries to switch back, that all their data is lost?

There are two options to save and continue Form later:

1. Auto Fill feature:  You can enable the "Auto Fill" feature of your form which will save the input data every few seconds. Please be noted that the auto-fill feature saves the input data in a browser cookie. That means if the user accesses the form again from another browser, other system or clear the browser cache, the saved data will not be accessible.

The following guide should help you:  http://www.jotform.com/help/227-How-to-Enable-Auto-Fill-Feature-Save-Form-Entries-to-Continue-Later

2. Save input data in session: User can save the input data in the session that is stored in our server. Please be noted that this feature should have the "Page Break" field. The data is saved only on the click of the next button.

The following guide should help you:  http://www.jotform.com/help/97-How-to-Save-Forms-to-Continue-Later

You can allow users to return to edit their submission in an email autoresponder.  Here is our guide on how to do so:

https://www.jotform.com/help/40-How-to-Let-Users-Update-Their-Form-Submissions-at-a-Later-Date

The emailed link will allow users to return to their specific submission at any time to update their data.  Once the submission is updated, it will be replaced with the new data, rather than creating a new submission.

I think you can take a look at the session method of saving as it uses the session to store the Form data.

Hope this helps!

Thanks.