In the lower-right corner of the page, click → Background gallery.
Select a photo or video from an album.
Click Use this background.
Note
You can configure the browser to randomly alternate images or videos from your Background gallery every 24 hours.
For one album. Select the album in the Background gallery and click Alternate these backgrounds.
For all albums. In the Background gallery, click Alternate next to All backgrounds.
Note
To make links and buttons on a new tab easy to read, a blackout filter is applied to all backgrounds downloaded from the computer. You can't cancel this filter. If you want a brighter background, enhance the brightness of the original image.