Tor Browser 15.0.20 is now available from the Tor Browser download page and also from our distribution directory.

This version includes important security updates to Firefox.

Send us your feedback

If you find a bug or have a suggestion for how we could improve this release, please let us know.

Full changelog

The full changelog since Tor Browser 15.0.19 is:

• All Platforms
  • Bug tor-browser#45204: Rebase Tor Browser stable onto 140.14.0esr
  • Bug tor-browser#45219: Backport Security Fixes from Firefox 154
• Windows + macOS + Linux
  • Updated Firefox to 140.14.0esr
• Android
  • Updated GeckoView to 140.14.0esr
• Build System
  • All Platforms
    • Bug tor-browser-build#41839: Backport tor-browser-build-browser#41831: Update libevent to 2.1.13
    • Bug tor-browser-build#41850: Update keyring/torbrowser.gpg for new subkey and updated expiration date of the main key
  • Windows + Linux + Android
    • Updated Go to 1.25.13