Open the public video or reel, choose Share, then select Copy link. On desktop, you can also copy the full HTTPS address from the browser after opening the video page.
Steps
Open the video itself
Navigate to the public video or reel rather than a feed preview.
Use the Share menu
Select Copy link. If that option is missing, choose More options and copy the URL from the browser.
Check the copied address
It should begin with HTTPS and use facebook.com or fb.watch. Never include account credentials.
Troubleshooting details
If the result says the video is private, test the link in a signed-out browser window. If it says unavailable, confirm the post has not been deleted and is accessible in your region. An fb.watch link may work better after it opens and you copy the resulting full Facebook address. Missing HD is not necessarily an error: F4Facebook cannot create quality that the source does not provide.
Never enter a Facebook username, password, cookie or access token into a downloader. F4Facebook cannot bypass private posts, friends-only visibility, login walls, age controls or regional limitations. For detailed messages, read F4Facebook Help or the responsible-use guide.
Copyright reminder
Only download content you own or have permission to use. Public visibility does not transfer copyright or grant permission to republish a video.
Use the Facebook video downloader