That's great, but what if you frequently visit a Web site, that's perfectly healthy, and you'd rather not let people know that you visit that site if they're borrowing your computer for a minute?
Thanks to wickednix for sending us this tip. You can see this tip in action at CNET TV.
In the "awesome bar," type "about:config".
Go ahead and agree that you'll be careful.
Find "browser.urlbar.matchOnlyTyped". Click it and the value should change to "True".
Exit the browser, restart, and Firefox will no longer show your private bookmarks.
Get a few more non-video Firefox tips at Webware.com.