Inserted thumbnail with Alternative text <iframe src='//www.facebook.com/plugins/like.php?href=http://www.jackdevlin.co.uk/images/samples/works-big/photo1-zoom.jpg&layout=button_count&show_faces=true&width=500&action=like&font&colorscheme=light&height=23' scrolling='no' frameborder='0' style='border:none; overflow:hidden; width:110px; height:23px;' allowTransparency='true'></iframe>
results in like button in the fancybox title. Note that the part like.php?href=http://www.jackdevlin.co.uk/images/samples/works-big/photo1-zoom.jpg
needs to be adapted to the full size image URL in question manually!

Image title “Title” and link title “<a href=’http://fancybox.net/’ target=’_blank’>Link</a>” (under Advanced settings tab) makes link in FancyBox title plus a tooltip

Image with NO title and alt “<a href=’http://fancybox.net/’ target=’_blank’>Link</a>” makes link in FancyBox title but NO tooltip.
Single image test:
Gallery test:
- capt 2