New Release: Tor Browser 14.0

Tor Browser 14.0 is now available from the Tor Browser download page and our distribution directory. This is our first stable release based on Firefox ESR 128, incorporating a year's worth of changes shipped upstream in Firefox. As part of this process we've also completed our annual ESR transition audit, where we reviewed and addressed over 200 Bugzilla issues for changes in Firefox that may negatively affect the privacy and security of Tor Browser users. Our final reports from this audit are now available in the tor-browser-spec repository on our Gitlab instance.

Extended support for legacy platforms

With the release of Tor Browser 13.5, we began warning users of Windows 7, 8 and 8.1 and macOS 10.12, 10.13 and 10.14 that this would be the last major release to support their platforms. In short, that situation has now changed, and users of these legacy platforms will continue to receive critical security updates updates on a temporary basis until at least March 2025.

Microsoft ended support for Windows 7, 8 and 8.1 in January of 2023, and Apple typically provides support for the previous three versions of macOS. In turn, Mozilla moved support for these versions to the Extended Support Release (ESR) of Firefox last year, and ESR 115 will be the final version of Firefox to support these platforms. However, Mozilla have since announced that ESR 115 will continue to receive critical security updates until at least March 2025, with the intention to re-evaluate the situation at the beginning of the year.

So how does this affect Tor Browser users? That's where it gets a little complicated: Tor Browser 13 is currently based on Firefox ESR 115, whereas Tor Browser 14 is based on ESR 128 – which doesn't support these legacy platforms. This means that the Tor Browser user base will be split across two update paths:

- Users of Windows 10 or later and macOS 10.15 or later will be updated to Tor Browser 14.0.
- User of Windows 7, 8 and 8.1 and macOS 10.12, 10.13 and 10.14 will remain on Tor Browser 13.5.

In turn, the Tor Project will continue to release new versions of Tor Browser 13.5 whenever critical security updates are made available for Firefox ESR 115. Ultimately, this support is only temporary, and is dependent on Mozilla's timetable. Therefore we strongly recommend users of legacy Windows and macOS platforms upgrade their operating systems in order to update to Tor Browser 14.0 before the extended support window ends. Keeping Tor Browser up to date is critical to protect your privacy, security and anonymity online.
Read more:
https://telegra.ph/New-Release-Tor-Browser-140-10-23