Tor Browser 8.5.3 is now available from the Tor Browser Download page and also from our distribution directory.

This release includes an important security update in Firefox, a sandbox escape bug, which combined with additional vulnerabilities could result in executing arbitrary code on the user's computer.

Note: As part of our team is currently traveling to an event, we are unable to access our Android signing token, therefore the Android release is not yet available. We expect to be able to publish the Android release this weekend. In the meantime, Android users should use the safer or safest security levels. The security level on Android can be changed by going in the menu on the right of the URL bar and selecting Security Settings .

Update: The Android version is now available from the download page.

The full changelog since Tor Browser 8.5.2 is: