You can add this blog as a Live Bookmark in Firefox.
What is a Live Bookmark? It is a folder of bookmarks, where each bookmark is a link to an article or posting in the RSS feed. It can be added to your Bookmarks Toolbar folder in Mozilla so you can skip bookmark menus.
Go to: Bookmarks > Manage Bookmarks
Now go to: File > New Live Bookmark...
Feed Location: http://whitemarker.blogspot.com/atom.xml
Now under Manage Bookmarks, drag and drop it into your Personal Toolbar folder or Bookmarks Toolbar folder.