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.
Unfortunately, we don't have that kind of function here in JotForm. We don't have a widget or app that will allow you to login your Facebook/Google account to authenticate in viewing the form.
You might want to check this guide: https://www.jotform.com/help/278-How-to-Integrate-Your-Form-with-Facebook-Fit-Forms.
If you want to protect your form, this thread might helpful for you: https://www.jotform.com/answers/937885#938093.
If you have any questions, let us know. Thank you.