Per-window Private Browsing in Nightly

Asa Dotzler

One of the most often requested features in the private browsing support for Firefox has been the ability to open a private window without closing the entire session. Over the past 19 months, we have been working on a plan to rewrite the private browsing code to do just that. I’m happy to announce that the first experimental builds will soon be landing on the Firefox Nightly channel, which you can download here: http://nightly.mozilla.org/.

First of all, let’s look at a couple of screenshots:

This feature let’s you keep your existing Firefox window when you open a new private window.  We have also added a frequently requested feature to allow opening a link in a private window.  In order to do this, just right click on any link and choose Open Link in a New Private Window.

In order to make this possible, we have redesigned the existing private browsing mode from scratch.  This was a huge project, and we received a lot of help from the Mozilla community, without which this would not have been possible.  We would like to thank everyone in the Mozilla community who helped us with implementing this feature; and a huge thanks to Ehsan Akhgari for managing this project.