This is for people who can't access the code to use the code solution provided in the above posts.
A low tech solution is to insert the <font> tag directly into the description. If you include font color and font face, then the font tag will over ride this bug.
For example:
<![CDATA[<a href='{URL}'><font color="#007FFF" face="arial">Live website data</font></a>]]>
If you use that then even if you click the link, the pop windows you open afterward will all have the same font & color as the original. Modify colors & faces to suit your requirements.