PC Mag writes: "Firefox 3.1 is looking like it's going to be more of a major release than most of their .0 releases.
Not for the first time, Mozilla has let it out in the Mozilla Wiki that a feature will be added to the next version of Firefox, to wit: a private browsing mode. This is a mode in which writes to cache, history, and other traces of the user's browsing activity are blocked.
In recent days we have received betas of both Internet Explorer 8 and Google's Chrome that also implement a private browsing mode. Clearly Firefox needed this mode and the team was working on it. Only Opera is left without one."