Tor Browser 15.0 is now available, built into Firefox 140 ESR

  • New features: vertical tabs, groups, and a unified search button based on Firefox ESR 140.
  • Privacy enhancement: managing WebAssembly blocking from NoScript and removing AI features from Mozilla.
  • Android gains screen lock and session wipe on shutdown for added protection.
  • Last major version with support for 32-bit Linux and Android 5–7; Tor 16 will remove that support.

Tor Browser 15.0

The Tor Project posted Tor Browser 15.0A new stable version of their free, cross-platform browser designed to protect against monitoring, surveillance, and censorship via the anonymous Tor network. The update is now available for download from the official website and can be installed on desktop and mobile devices.

Based on Firefox ESR 140This edition incorporates functional and security improvements that have been in development over the past year. Among them are the following: vertical tabs, tab groups and a new unified search button which allows you to switch engines, search in bookmarks or tabs, and launch quick actions.

What's changed in Tor Browser 15.0

The update integrates numerous changes from Mozilla's ESR branch and adapts them to Tor's privacy approach, including interface adjustments and accessibility improvements such as a More consistent dark mode for a consistent visual experience across platforms.

Tabbed browsing gets a significant boost: it's now possible to organize your work with tab groups and place the tabs on a side panel with vertical tabsThis is especially useful on widescreen displays and in demanding multitasking workflows.

The new unified search button It concentrates several functions in a single point: quickly switching between search engines, locating content in bookmarks or tabs open and activate action shortcuts without leaving the bar.

Privacy and security: key settings

With a focus on minimizing attack surface and data exposure, Tor Browser 15.0 moves the blocking policy of WebAssembly (Wasm) a NoScriptThe module that already manages JavaScript and other risk capabilities. This change facilitates a more granular management: default blocking in general contexts and the possibility of explicit exceptions when the user decides.

In addition, the team has removed components linked to AI functions present in Mozilla code to align them with Tor's privacy standard. The measure aims to reduce any unnecessary data sharing and strengthen local control, a priority especially valued in Europe under the GDPR.

Taken together, these decisions bolster protection against fingerprints, trackers and other vectors, maintaining Tor's philosophy: prioritize security even if it means sacrificing certain default conveniences.

Android: More security on the go

On mobile devices, Tor Browser 15.0 adds a screen lock Specifically designed for the app, it adds an extra layer of security to prevent prying eyes when the device is left unattended. This feature is intended to protect sensitive sessions in work environments or on public transport.

The option is also coming to Android. delete session upon closing The browser behaves the same way as the desktop. This reduces local traces and strengthens privacy if you share the device or use it in mixed environments. personal and professional life.

End of support for older 32-bit Linux and Android systems

Tor Browser 15.0 will be the latest major version which will support 32-bit Linux systems and Android 5.0, 6.0 and 7.0The project plan states that, starting with Tor Browser 16.0 (scheduled for the 2026 second quarter), compilations will no longer be offered for those platforms.

For users in Spain and the rest of the EU who maintain older equipment, the recommendation is evaluate an update system or migrate to compatible hardware. Maintaining unsupported software increases the risk of vulnerabilities, which is critical in contexts where the privacy and compliance regulations are a priority.

Availability of Tor Browser 15.0, download and update

The new version can be downloaded from the official website of the Tor Project For Windows, macOS, Linux, and Android. It is advisable to verify the signatures and, if applicable, the reproducible builds before installing, so you can confirm that the binary has not been altered.

If you already use Tor Browser, you should receive the automatic update in the next few hours. For those managing deployments in European organizations, it is advisable to test the version in a controlled environment before its release. widespread adoption, reviewing NoScript policies, extension compatibility, and potential dependencies.