Facebook has rolled out a Photo viewer which looks almost same like Google+.The ads display next to the picture on the right if there are no comments.
Switch back to the Classic Photo viewer on Faccebook
- While viewing a picture in Facebook using new photo viewer,Process a “reload” on the current page.It will automatically switch back to classic viewer.
- Or go to the URL and remove “&theater” then hit enter.
- Or hold the CTRL while clicking the thumbnail picture.It will automatically open in a new window as classic photo viewer.
Please see the following screencast for details: