

When you click 'download', the image may appear in a new web browser where you can do the usual right click and save. If you click on that you have the option to replace it with a new thumbnail or download the existing one. There should be a box with three dots inside the current thumbnail.

Click on a video to jump to the edit page and under the basics tab you should see a selection of potential thumbnails selected from the video and your current thumbnail if it is a custom one. To download a thumbnail from one of your own YouTube videos in the new Studio click on the Videos section where you will find all your videos listed with the most recent first. If you click on that you have the option to go to YouTube Studio, this is currently in beta, but will become the standard as 2019 progresses. Want to download your own thumbnail from YouTube? When you are logged into YouTube you should see your channel logo in the top right hand corner of most YouTube screens.
