Now the photo viewer will automatically display photos in the highest resolution possible. On a large display, this can be up to 4 times bigger than before.
Starting today, you can expand the photo viewer to take up your entire computer screen.
If you’re using the latest version of Firefox or Chrome, click the arrows at the top-right corner of a photo to expand to fullscreen.
To read about more photo updates, visit Facebook Engineering.
To learn about the tools you can use to make your photos look better, visit the Help Center.