Tor Browser 10.5a13 is now available from the Tor Browser Alpha download page and also from our distribution directory.

Note: This is an alpha release, an experimental version for users who want to help us test new features. For everyone else, we recommend downloading the latest stable release instead.

This release updates Firefox to 78.9.0esr for desktop and Firefox for Android to 87.0.0. Additionally, we update Tor to 0.4.6.1-alpha and OpenSSL to 1.1.1k and NoScript to 11.2.3. This release includes important security updates to Firefox for Desktop, and similar important security updates to Firefox for Android.

Important Note: This is the first Tor Browser version that does not support version 2 onion services. Please see the previously published deprecation timeline.

Note: Tor Browser 10.5 does not support CentOS 6.

The full changelog since Tor Browser 10.5a11 (windows, macOS, and Linux) and 10.5a12 (Android) is:

• Windows + OS X + Linux
  • Update Firefox to 78.9.0esr
  • Update NoScript to 11.2.3
  • Update Openssl to 1.1.1k
  • Update Tor to 0.4.6.1-alpha
  • Translations update
  • Bug 40030: DuckDuckGo redirect to html doesn’t work
  • Bug 40032: Remove Snowflake survey banner from TB-alpha
• Android
  • Update Fenix to 87.0.0
  • Bug 40047: Rebase android-components patches for Fenix 87.0.0
  • Bug 40153: Rebase Fenix patches to Fenix 87.0.0
  • Bug 40365: Rebase 10.5 patches on 87.0
  • Bug 40383: Disable dom.enable_event_timing
• Build System
  • Windows + OS X + Linux
    • Update Go to 1.15.10
    • Bug 23631: Use rootless containers [tor-browser-build]
    • Bug 40016: getfpaths is not setting origin_project
  • Windows
    • Bug 40252: Bump mingw-w64 and clang for Firefox 78.9