We are pleased to announce the second release in our hardened Tor Browser series. The download can be found in the 5.5a5-hardened distribution directory and on the download page for hardened builds.

This release features important security updates to Firefox.

Additionally, we included updated versions for Tor (0.2.7.6), OpenSSL (1.0.1q) and NoScript (2.7). Moreover, we fixed an annoying bug in our circuit display (circuits weren‘t visible sometimes), isolated SharedWorkers to the first-party domain and improved our font fingerprinting defense.