This method also works for the Lite App and the mobile website.
If you’re doing this for the first time, you’ll be prompted to allow Facebook to access your device’s camera and storage.
iOS - Tap the Camera button in your Facebook post, then tap the Camera again in the top-left corner of your Camera Roll. Tap the Video Camera button in the lower-right corner, then tap the Shutter button to record. Once you’re finished recording, tap “Use” to add it to your post. Tap the Camera button in your post, then tap the Video Camera button with a “+” at the top of the screen. This will open your Android device’s camera to record a new video. Once you finish recording, it will be added to the list of videos that you can select.
You may want to connect to a wireless network before uploading to avoid using up your data plan.
Make sure you’re using the desktop version of the website. It is not possible to upload videos from the Facebook mobile website. If you’re on a mobile device and want to upload a video to Facebook, you’ll need to use the mobile app.
Length is limited to 120 minutes and file size is limited to 4 GB. [2] X Research source If you want to upload multiple videos, press Ctrl (Windows) or Cmd (Mac) as you click more videos to include them to your selection.
All videos that you upload to Facebook are posted to the News Feed. There is no way to upload a video without “posting” it, even if the audience is just set to yourself. Long videos will take a while to upload and even longer to process. Make sure you have a strong connection before uploading large video files. You can’t monitor your post as it processes, you’ll see it appear in your notifications when it is finished processing.
Click the “Albums” tab and then select the “Videos” album to see all of your uploaded videos.
Uploading takes a lot longer than downloading, so you’ll likely have to wait a while for larger videos to upload. [3] X Research source