No, if history is only kept for 6 ,months then older history is no longer available.<br /> The default in Firefox 3 versions is to keep history for 180 days (6 months).<br /> * http://kb.mozillazine.org/browser.history_expire_days In Firefox 4+ that has changed to a maximum number of pages that is kept.<br /> So you can update to Firefox 8 and it will remember more history, but you can't get back older history.<br /> <br /> There is no time limit in Firefox 4+ versions for the history.<br /> Firefox determines automatically how many pages can be kept without affecting the performance.<br /> You can see the current value via the reads-only pref places.history.expiration.transient_max_pages on the about:config page. See: * http://blog.bonardo.net/2010/01/20/places-got-async-expiration