Is it possible, when my customers fill in my form, the app/form will automaticly grab the facebook name of the customer? or grab their facebook link?

If it helps, please check some of our Facebook widgets: https://widgets.jotform.com/search/facebook

Also, you can check if any of Zapier Facebook integration with JotForm could work for you: https://zapier.com/zapbook/facebook-pages/jotform/

If you have any additional questions, please let us know.

Thank you!