Tor Browser version 12.0.4 was released on March 18, 2023 . This version updated the underlying Firefox browser to 102.9.0esr
However, this version also signaled the beginning of the end for legacy support. Developers warned that maintaining security on older platforms was becoming "hard work" and likened running unsupported software to driving a "car with faulty brakes". By March 2026, official support for these legacy branches finally concluded with version 13.5.29, making 12.0.4 a nostalgic marker of the era when Tor still natively supported the final vestiges of the Windows 7 and 8 generation. New Release: Tor Browser 12.0.4 | The Tor Project Tor Browser 12.0.4 Older Versions for Windows
It addressed several technical bugs, such as preventing NoScript from being accidentally disabled before its core functions were fully integrated into the browser and improving how the browser handles source referrals. Compatibility and "Old Version" Status Tor Browser version 12
In the fast-paced world of cybersecurity, the mantra is usually "update now, update often." The Tor Project releases new versions of its flagship Tor Browser bundle frequently—sometimes multiple times a month—to patch security holes, update NoScript, and improve the privacy features of the underlying Firefox Extended Support Release (ESR). De-anonymization Risks Only use this version for: However,
Version 12.0.4 uses an older bridge database. If you are in a region that censors Tor (e.g., China, Russia, Iran), the default bridges may be blocked. You must obtain fresh bridges from the Tor Project’s Telegram bot or email service, then manually enter them in Settings > Tor > Provide a Bridge .