New Alpha Release: Tor Browser 16.0a3

Tor Browser 16.0a3 is now available from the Tor Browser download page and also from our distribution directory.

This version includes important security updates to Firefox.

⚠️ Reminder: The Tor Browser Alpha release-channel is for testing only. As such, Tor Browser Alpha is not intended for general use because it is more likely to include bugs affecting usability, security, and privacy.

Moreover, Tor Browser Alphas are now based on Firefox's betas. Please read more about this important change in the Future of Tor Browser Alpha blog post.

If you are an at-risk user, require strong anonymity, or just want a reliably-working browser, please stick with the stable release channel.

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 16.0a2 is:

• All Platforms
  • Updated Tor to 0.4.9.5
  • Updated NoScript to 13.5.12.90301984
  • Bug tor-browser#44562: Set the new online Suggest prefs to false
  • Bug tor-browser#44571: Disable restrict_to_adults for potential fingerprintability
  • Bug tor-browser#44619: Add custom logs to Tor logs
  • Bug tor-browser#44625: metamask.io won't load on Safer security level
  • Bug tor-browser#44626: Propagate WASM blocking to workers
  • Bug tor-browser#44647: Clean up patch for SearchEngineSelector.sys.mjs.
  • Bug tor-browser#44652: Backport fix for Firefox Bug 2014390
  • Bug tor-browser-build#41713: Try to find a component for bugs found with commits in triage spreadsheets
• Windows + macOS + Linux
  • Bug tor-browser#43560: Add "UTC" to the end of the timestamp on tor logs (Desktop)
  • Bug tor-browser#44459: Letterboxing content alignment setting is missing styling
  • Bug tor-browser#44520: Make sure "Firefox labs" is hidden by default
• Windows
  • Bug tor-browser#44623: 16.0a2: about:preferences#privacy is empty
• Linux
  • Bug tor-browser#44050: Consider changing the domain in DBus interfaces
• Android
  • Bug tor-browser#43403: Add "UTC" to the end of the timestamp on tor logs (Android)
  • Bug tor-browser#44057: Drop about:torconnect from android
  • Bug tor-browser#44620: Move the Android IPC directory
  • Bug tor-browser-build#28595: Remove the need to update var/gradle_dependencies_version
• Build System
  • All Platforms
    • Bug tor-browser-build#40338: Running make release multiple times fails
    • Bug tor-browser-build#41660: Add a Firefox target to build unpatched Firefox in tor-browser-build
    • Bug tor-browser-build#41693: Drop base-browser targets
    • Bug tor-browser-build#41720: cp -l in release/build fails when crossing file systems
    • Bug rbm#40093: Make it easy to get the sha256sum of an input_files file
    • Bug rbm#40103: Allow having multiple tmp_dir values
  • Windows + Linux + Android
    • Updated Go to 1.25.7
  • Android
    • Bug tor-browser-build#41719: Enable network when var/generate_gradle_dependencies_list is set in geckoview