The codes for displaying the above screenshot is shown in the scroll box below:
<a href="http://photos1.blogger.com/blogger/1313/787/1600/clear%20private%20data.jpg"><img style="display:block; margin:0px auto 10px; text-align:center;cursor:pointer; cursor:hand;" src="http://photos1.blogger.com/blogger/1313/787/200/clear%20private%20data.jpg" border="0" alt="Firefox clear cache" /><center>FireFox Clear Private Data</center></a>
Well, as you can see, by surrounding the text "FireFox Clear Private Data" with the <center> and </center> we get a clickable caption for the photo. Try clicking on the caption and see what happen.