# Tor Browser 16.0 ships on 64-bit Arm Linux, drops 32-bit x86 support

> **Key takeaway:** Tor Browser 16.0 is the first stable release based on Firefox ESR 153, adding 64-bit Arm Linux support while ending 32-bit x86 Linux compatibility.

**Published:** 2026-11-02T14:28:23+00:00 
**Source:** Linux Weekly News (LWN.net) 
**Category:** kernel-os 
**Canonical URL:** https://fosswire.org/news/tor-browser-160-ships-on-64-bit-arm-linux-drops-32-bit-x86-s.html 

## Summary
The Tor Project has released Tor Browser 16.0, the first stable version built on Firefox Extended Support Release 153. This release expands platform support to include Linux on 64-bit Arm architectures, while simultaneously ending support for 32-bit x86 Linux systems in line with upstream Firefox policy changes.

The release introduces several privacy and usability improvements: a redesigned settings interface, a new 'generic window titles' feature intended to prevent other applications from inferring browsing activity through window name inspection, and Android interface updates adopting Google's Material Design 3. These changes affect users across desktop Linux, Arm-based Linux devices, and Android platforms.

## Platform and privacy changes in Tor Browser 16.0
- **Firefox ESR 153 rebase:** This is the first stable Tor Browser release based on Firefox ESR 153, incorporating upstream security patches and web platform updates from that Firefox branch.
- **64-bit Arm Linux support:** The release newly supports Linux on aarch64/ARM64 processors, expanding compatibility to Arm-based laptops, single-board computers, and emerging server platforms running Linux.
- **32-bit x86 Linux deprecation:** Following Firefox's lead, Tor Browser 16.0 removes support for i686/x86 Linux systems, which will no longer receive updates or security patches.
- **Generic window titles:** A new anti-fingerprinting feature replaces identifiable window titles with generic labels to block other applications from monitoring browsing activity through window manager APIs.
- **Android Material Design 3:** The Android build receives interface updates conforming to Google's current design language, affecting navigation patterns and visual components.

## Why it matters
The addition of 64-bit Arm Linux support broadens Tor Browser availability for users of increasingly popular Arm laptops and Raspberry Pi-class devices, while the removal of 32-bit x86 support forces remaining legacy hardware users to migrate or accept unmaintained software. The generic window titles feature represents a practical defense against a class of side-channel surveillance that could be exploited by malicious or overly curious applications on shared Linux systems.