How To Embed Facebook In An Iframe

Use the Facebook Page Plugin or Post embed code from the developer tools.

Embed Code

<iframe src="https://www.facebook.com/plugins/page.php?href=PAGE_URL&tabs=timeline"
  width="340" height="500"
  style="border:none;overflow:hidden"
  scrolling="no" frameborder="0"
  allow="clipboard-write; encrypted-media; picture-in-picture; web-share"></iframe>

Why The Main Site Won't Frame

facebook.com sends X-Frame-Options: DENY. Only the official plugin endpoints under /plugins/ can be embedded.

Official documentation →

See the embedding status of facebook.com →