Note: Facebook private video download only works on computer.
Step 1: Go to Facebook.com on your computer → find the video you want to download → click on the posting time.

Step 2: Press Ctrl+U (Windows) or ⌘-Option-U (Mac) to view the page source code.
OR
Right click on any part of the page, then click the View page source option.

Step 3: Highlight all source code by pressing Ctrl + A (Windows) or ⌘ + A (Mac), then right-click and select "Copy".

Step 4: Go to https://savefb.app/en/private-facebook-video and paste the copied source code into the input box then press the "Download" button.

Step 5: Select MP4 or MP3 format, keep pressing the Download or Render button and wait a few seconds for the file to load about your device.
With SaveFB.App you can download private Facebook videos in few easy steps. We will continuously upgrade to bring you the best experience! Please share this tool with friends and family. Thank you!