Overview

• Firefox’s new AI-assisted tab grouping uses a private, on-device model to suggest and name related tab clusters in a staged rollout over coming weeks
• A built-in unit converter in the address bar handles lengths, temperatures, mass, force, angles and time zones with one-click copy functionality
• On Linux, Firefox 141 reduces memory consumption and removes the need for forced restarts after package manager updates
• The update introduces WebGPU support for Windows graphics and ML workloads, with macOS, Linux and Android versions to follow, and moves downloads to firefox.com
• Over 18 security flaws are fixed in MFSA2025-56—including two high-risk CVEs—and Firefox 141 aligns fixes across ESR branches 115, 128 and 140