When a download attempt just doesn't work, it's rarely a mystery once you check the right things. Here are the actual reasons a Facebook video download fails, roughly in order of how often each one comes up.

1. The Post Is Private

By far the most common reason. If a video is posted by a friends-only profile, a private account, or shared inside a closed Group, it isn't reachable by any downloader — including this one — without being logged in and already connected to that specific account or Group. This isn't a bug or a missing feature; it's Facebook's own privacy system doing exactly what it's supposed to do. Check: can you open the video's link in a private/incognito browser window, logged out of Facebook entirely? If it asks you to log in first, that's your answer.

2. The Link Is Broken or Shortened Incorrectly

Some share links — especially ones copied from third-party apps, forwarded through messaging apps, or shortened by a link-shortening service — don't resolve the way a direct Facebook share link does. Fix: go back to the original post on Facebook itself and recopy the link using Share → Copy Link directly, rather than reusing a forwarded or shortened version.

3. The Content Was Deleted or Made Private After You Got the Link

If the poster removed the video, deleted the whole post, or changed its privacy setting between when you copied the link and when you tried to download it, the link will no longer resolve to anything. There's no fix here beyond asking the poster to re-share it, if that's an option.

4. It's a Live Video Still Broadcasting

A stream that's currently live isn't a fixed, downloadable file yet — it becomes one only after the broadcaster ends it and Facebook finishes converting it into a standard replay. Fix: wait until the broadcast has fully ended, then try again a few minutes later once the replay has processed. See how to download a Facebook Live video replay for more detail on timing this correctly.

5. A Story That Already Expired

Stories disappear 24 hours after posting, permanently, with no retrieval option afterward regardless of which tool you try. If a Story link no longer works, this is almost certainly why.

6. Temporary Facebook-Side Issues

Occasionally, Facebook's own servers are slow to respond or briefly rate-limit a request — this shows up as a download that hangs or times out rather than failing immediately. Fix: wait a minute and retry; if it's a genuine platform-side hiccup, it usually resolves on its own.

Quick Diagnostic Checklist

  1. Open the link in a logged-out/incognito browser tab — does it load without asking you to sign in? If not, it's private.
  2. Recopy the link fresh from the original post rather than a forwarded version.
  3. Confirm the post still exists by checking it directly on Facebook.
  4. If it's Live, wait for the broadcast to end.
  5. If it's a Story, check whether the 24-hour window has passed.

FAQ

Is there any way to download a private video anyway? No — and see can you download private Facebook videos for the full explanation of why that's intentional, not a gap to work around.

Why did it work yesterday but not today? Usually means the post's privacy setting changed, or it was deleted, between attempts.

Does this happen more on mobile or desktop? No difference — the underlying cause is always about the post itself, not which device is requesting it.

Once you've confirmed the video is genuinely public, the downloader on the homepage should work normally.