Error rendering characters in Firefox LiveBookmark RSS

I am having an issue with how my entries are displayed in firefox livebookmarks. When there is a certain character in the title of one of my entries the html code is displayed in the livebookmark instead of the character. Does anyone know how I could fix this? A screenshot of what I am talking about can be found here https://www.areyouseen.com/livebookmarkerror.jpg

Thanks in advance.
-Nick