The third alpha release of the 4.5 series is available from the extended downloads page and also from the distribution directory. Tor Browser 4.5a3 is based on Firefox ESR 31.4.0, which features important security updates to Firefox. Its updater now contains the code for verifying signed update files and does not accept unsigned ones anymore. Moreover, this release includes an updated Tor, 0.2.6.2-alpha, an updated meek, 0.15, which is now working again, and a bunch of additional improvements and bugfixes.
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.
The fourth pointfix release of the Tor Browser 3.6 series is available from the Tor Browser Project page. This release features an update to OpenSSL to address the latest round of OpenSSL security issues. Tor Browser should only be vulnerable to one of these issues – the null pointer dereference. This release also features an update to Tor to alert users of the RELAY_EARLY attack via a log message, and a fix for a hang that was happening to some users at startup/Tor network bootstrap.
Tor Browser was developed to protect users privacy and anonymity when browsing the web by bouncing your communications around a distributed network of relays run by volunteers all around the world. It prevents somebody watching your Internet connection from learning what sites you visit, it prevents the sites you visit from learning your physical location, and it lets you access sites which are blocked. Tor Browser 3.6.3 is the third point fix release of the 3.