Get an accurate preview of your video posts and select a preferred thumbnail for your Facebook, Instagram* and YouTube videos.
When composing a post, after you upload the video you'll find the option to choose a thumbnail in the top left corner:
The video slider will show up, and you can go frame by frame until you find the perfect one to set as your video cover.
It's that easy!
*For Instagram, this feature is available for video posts that are directly published and IGTV posts.