Customize Facebook Videos With Thumbnails & Captions


There are a few really simple things that can have a big impact on your video’s reach and engagement. One of these is adding custom (branded) thumbnails. Below are the steps of how to add a customized thumbnail to your Facebook video.

Add a Thumbnail to a Facebook video

Falcon will automatically select 10 frames from your video that can be used as the thumbnail. Select one of them by clicking the left and right arrows underneath the uploaded file. 

Alternatively, you can also upload your own custom thumbnail through the following steps:

  1. From Publish, click on the Create Post button, select the Facebook channel(s) you want to post to
  2. In the Editor, upload your video
  3. Hover over the default thumbnail in the Editor and click on the Custom button
  4. In the pop-up window you will be able to upload the image from different sources: My Computer, Google Drive, Dropbox, OneDrive, Box, Facebook, Instagram, Flickr, Google Photos, Link (URL), Take Picture, FTP.
  5. Review the thumbnail in preview before publishing.


If you are asking yourself whether or not you should be adding captions to your Facebook videos, our answer is yes. According to Facebook, 85% of their videos are viewed with the audio off and 76% of their video ads require audio to be understood. Moreover, uploaded captions help your post perform better than a video with embedded captions.

About SRT Files

Falcon supports the SubRip (.srt) file format. SubRip files are plain-text files that contain subtitle information. They include start and stop times next to the subtitle text, ensuring they’ll be displayed at exactly the right moment in your video. If you’re just getting started, learn about naming conventions for SRT files and common SRT formatting issues.

You can create SRT files with almost any text editor that you have installed on your computer. For example, Notepad will work for Windows users and TextEdit for Mac users. When you create an SRT file in a text editor, you need to format the text correctly and save it as an SRT file.

Read more about the formatting and other options for creating SRT files here.

Adding a Caption to your Facebook video

  1. From Publish, click on the Create Post button, select the Facebook channel(s) you want to post to.
  2. In the Editor, upload your video
  3. Click on the Add Captions button and upload the .srt file in the pop-up window
  4. To add captions in other languages, repeat steps 1-3 for each additional language you want to add.


Although we encourage you to follow the naming conventions defined by Facebook, we also support your own naming of the SRT file.


You can find our guide with recommendations for SRT and Thumbnail file properties here.

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