Tor Browser 8.0.4 is now available from the Tor Browser Project page and also from our distribution directory.

This release features important security updates to Firefox.

Tor Browser 8.0.4 contains updates to Tor (0.3.4.9), OpenSSL (1.0.2q) and other bundle components. Additionally, we backported a number of patches from our alpha series where they got some baking time. The most important ones are

a defense against protocol handler enumeration which should enhance our fingerprinting resistance,

enabling Stylo for macOS users by bypassing a reproducibility issue caused by Rust compilation and

setting back the sandboxing level to 5 on Windows (the Firefox default), after working around some Tor Launcher interference causing a broken Tor Browser experience.

Moreover, we ship an updated donation banner for our year-end donation campaign.

The full changelog since Tor Browser 8.0.3 is: