the visited sites font color does not work

* Make sure that you not run Firefox in (permanent) [[Private Browsing]] mode * In Private Browsing mode some menu items are disabled (grayed) and features like visited links are disabled and not showing * You are in Private Browsing mode if you see "Tools > Stop Private Browsing", possibly grayed * You enter Private Browsing mode if you select: Tools > Options > Privacy > History: Firefox will: "Never Remember History" * To see all History settings, choose: Tools > Options > Privacy, choose the setting <b>Firefox will: Use custom settings for history</b> * Uncheck: [ ] "Automatically start Firefox in a private browsing session"