I was trying to implement ThickBox that built above jQuery. I wanted to have more detailed description in the Title property, so I inserted html tags inside it Title (a href and br). As a result, the height of my thickbox is wrong in FireFox. (IE is OK). Have I missed something? ThickBox: http://jquery.com/demo/thickbox/ Image Gallery: http://www.featurepics.com/Thickbox/Image-Gallery.aspx Thank you in advance!