Tumblr Savior for Firefox lets you eliminate stories that are of little or no interest to you from your dashboard so that you can focus on the things that really matter to you. Using the add-on is easy. All you have to do is create a list of terms of things that you don’t want to see. Once you have added a term, you will no longer see posts that include the term.
Versions of the add-on are also available for Safari, Opera, Chrome, and Greasemonkey. They can be found at http://tumblr-savior.bjornstar.com.