: On Facebook or Reddit , click the "Image/Video" or "Photo" icon in the post creation box. Select your MP4 file from your device and click post.
: Use the tag to embed a hosted MP4 file directly: . How do I post videos in 'add media'. Please help - Facebook 11151mp4
To make a post with an MP4 file, you generally need to upload it directly to the platform's media or attachment section or embed a link from a video hosting site. Methods to Post an MP4 File : On Facebook or Reddit , click the