by richard | March 11, 2022

Tor Browser 11.5a6 is now available from the Tor Browser download page and also from our distribution directory.
This version includes important security updates to Firefox:
- https://www.mozilla.org/en-US/security/advisories/mfsa2022-09/
- https://www.mozilla.org/en-US/security/advisories/mfsa2022-11/
Tor Browser 11.5a6 updates Firefox on Windows, macOS, and Linux to 91.7.0esr.
We use the opportunity as well to update various other components of Tor Browser:
- Tor 0.4.7.4-alpha
- NoScript 11.3.7
We also switch to the latest Go version (1.17.8) for building our Go-related projects.
The full changelog since Tor Browser 11.5a4 is:
- Windows + OS X + Linux
- Update Tor to 0.4.7.4-alpha
- Update NoScript to 11.3.7
- Bug tor-browser#19850: Disable Plaintext HTTP Clearnet Connections
- Bug tor-browser-build#40440: Bump version of snowflake to include PT LOG events
- Bug tor-browser#40819: Update Firefox to 91.7.0esr
- Bug tor-browser#40824: Drop 16539 Patch (android screencasting disable)
- Bug tor-browser#40825: Redirect HTTPS-Only error page when not connected
- Bug tor-browser#40826: Cherry-pick fixes for Mozilla bug 1758062
- Build System
- Windows + OS X + Linux
- Update Go to 1.17.8
- Bug tor-browser-build#40441: Add Austin as a valid git-tag signer
- Windows + OS X + Linux
This is a companion discussion topic for the original entry at https://blog.torproject.org/new-release-tor-browser-115a6/