I suppose it would help if I knew not only what you wanted but why, as there are a few possibilities that may help.

You may use private browsing,to stop some events being logged into the history in the first place, you may also clear items,single ones if need be.

• seeRemove websites from the address bar suggestions
• and private browsing

You can choose whether or not to display the history as suggested options from the location bar.

• see location bar autocomplete_how-can-i-control-what-results-the-location-bar-shows-me

If you save History, then it can be displayed, I dare say there are methods of removing the button/option to display history from the UseIneterface but it would still be available from the Library.

Another option you may consider is settng up user accounts on the Operating System for different users, or even setting up separate firefox profiles for different users on the same OS account.

You can hide the History menu item on the menu bar and maybe in the Firefox menu as well if you do not want to see history in that menu.

Add code to userChrome.css below the default @namespace line.

• http://kb.mozillazine.org/userChrome.css

The customization files userChrome.css (interface) and userContent.css (websites) are located in the chrome folder in the user profile folder.

• http://kb.mozillazine.org/Editing_configuration

@namespace url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"); /* only needed once */

#history-menu, #appmenu_history { display:none!important; }