The second Tor Browser Bundle 4.0 alpha 2 in the 4.0 series, is now available for download. This release includes important security updates to Firefox. In addition to including the changes in 3.6.5, this release also is the first Tor Browser release to enable the in-browser Firefox-based updater. Furthermore, the NoScript behavior in this release has changed. Selecting “Temporarily allow scripts” will now automatically allow all scripts in a page. Tor Browser Bundle 4.