"With a stroke at the keyboard, users can erect stiff privacy barriers that will prevent their Web surfing habits from penetrating the browser history and defiling the sensitive auto-completion system with incriminating data where it might arouse the suspicions of subsequent users. Thanks to Private Browsing in Firefox 3.5, your friends and coworkers will never discover your unwholesome obsession with the hot pussies in the Cats-n-Racks section at CuteOverload.com."

First look: Firefox 3.5 released, ready to “upgrade” the Web - Ars Technica