fping per Joubin Jabbari

<p>As of right now, Chrome will not allow you to disable the Ping attribute on <a> tags. While at the writing of this, Firefox does allow you to disable ping, I’m only publishing this if that option is one day removed. </p>

<p>You do not need this extension if Firefox allows you to disable ping. </p>

<p>See this for more details.</p>