Rated 5 out of 5 stars

I think Apple Inc. is trying to patent your idea, w.r.t. browser history, on behalf of Safari.
You 'd better check it out immediately:
http://www.mydigitallife.info/2008/09/27/apple%E2%80%99s-patent-filing-disclosed-safari-navigation-history-improvement-for-greater-web-browsing-experience/

This review is for a previous version of the add-on (0.7.2008062001).