New Alpha Release: Tor Browser 12.0a1 (Windows, macOS, Linux)

Tor Browser 12.0a1 is now available from the Tor Browser download page and also from our distribution directory.

Tor Browser 12.0a1 updates Firefox on Windows, macOS, and Linux to 91.12.0esr.

We use the opportunity as well to update various other components of Tor Browser:

• Tor Launcher 0.2.38
• OpenSSL 1.1.1q
• Go 1.17.13

This version includes important security updates to Firefox.

The full changelog since Tor Browser 11.5a13 is:

• Windows + OS X + Linux
  • Update Firefox to 91.12.0esr
  • Update Tor-Launcher to 0.2.38
  • Update Translations
  • Update OpenSSL to 1.1.1q
  • Update Manual
  • Bug tor-browser#21740: Make sure Mozilla's own emoji font on Windows/Linux does not interfere with our font fingerprinting defense
  • Bug tor-browser#27719: Treat unsafe renegotiation as broken
  • Bug tor-browser-build#40584: Update tor-browser manual to latest
  • Bug tor-browser#40966: Investigate problems with Twemoji Mozilla
  • Bug tor-browser#41011: The Internet and Tor status are visible when opening the settings
  • Bug tor-browser#41035: OnionAliasService should use threadsafe ISupports
  • Bug tor-browser#41036: Add a preference to disable OnionAlias
  • Bug tor-browser#41037: User onboarding still points to about:preferences#tor
  • Bug tor-browser#41044: Content exceeding the height of the connection settings modals
  • Bug tor-browser#41049: QR codes in connection settings aren't recognized by some readers in dark theme
  • Bug tor-browser#41050: "Continue to HTTP Site" button doesn't work on IP addresses
  • Bug tor-browser#41053: remove HTTPS-Everywhere entry from browser.uiCustomization.state pref
  • Bug tor-browser#41054: Improve color contrast of purple elements in connection settings in dark theme
  • Bug tor-browser#41055: Icon fix from #40834 is missing in 11.5 stable
  • Bug tor-browser#41058: Hide currentBridges description when the section itself is hidden
  • Bug tor-browser#41059: Bridge cards aren't displaying, and toggle themselves off
  • Bug tor-browser#41067: Cherry-pick fixes for HTTPS-Only mode
  • Bug tor-browser#41070: Google vanished from default search options from 11.0.10 onwards
  • Bug tor-browser#41089: Add tor-browser build scripts + Makefile to tor-browser
  • Bug tor-browser#41095: "Learn more" link in onboarding slideshow still points to 11.0 release post
• Windows
  • Bug tor-browser#30589: Tor Browser on Windows is lacking fonts to render some kind of scripts
  • Bug tor-browser#41039: Set 'startHidden' flag on tor process in tor-launcher
• OS X
  • Bug tor-browser#41004: The Bangla font does not display correctly on MacOs
• Linux
  • Bug tor-browser#41043: Investigate why STIX Two becomes the default font on Linux
• Build System
  • Windows + OS X + Linux
    • Update Go to 1.17.13
    • Bug tor-browser-build#40499: Update firefox to enable building from new 'base-browser' tag
    • Bug tor-browser-build#40500: Add base-browser package project
    • Bug tor-browser-build#40501: Makefile updates to support building base-browser packages
    • Bug tor-browser-build#40547: Remove container/remote_* from rbm.conf
    • Bug tor-browser-build#40581: Update reference to master branches