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Will the new Firefox 149 AI tools and privacy features improve your browsing?
Firefox 149 Overview
Mozilla plans to integrate several functional tools into the Firefox browser starting with version 149 in April 2026. Nightly builds will launch on March 24, 2026, introducing features designed to improve user privacy and productivity. The upcoming update focuses heavily on secure browsing and efficient multitasking. These additions stem from Mozilla’s March 17 announcement detailing upcoming browser enhancements.
Built-in Privacy Network
The most prominent addition is a free, built-in virtual private network. Many existing free VPN services utilize questionable data practices that threaten user privacy. Mozilla addresses this problem by routing your browser traffic through a secure proxy based on strict privacy principles. This system hides your IP address and physical location without requiring additional software downloads. Users in the US, France, Germany, and the UK will initially receive 50 gigabytes of secure data per month.
Split-View Display
Multitasking improves significantly with the new split-view display feature. This tool allows you to view two distinct web pages side-by-side within a single browser window. You can easily compare information, copy text, and manage multiple tasks without constantly switching between tabs. Mozilla provides an option to disable this layout for users who prefer a traditional browsing experience.
Smart Intelligence Tools
Firefox 149 introduces a “Smart Window” to provide instant artificial intelligence assistance. You can quickly generate article summaries, look up definitions, and compare products while staying on your current web page. Participation in this artificial intelligence program is voluntary, and Mozilla is currently accepting waitlist sign-ups for early access. Additionally, a new “Tab Notes” feature lets you attach text directly to specific tabs to help you maintain context across browsing sessions.