Mozilla has launched a new feature in Firefox 149 that provides users with a free, built-in VPN service designed to enhance online privacy. This VPN allows users to browse securely without the need for third-party applications, offering up to 50 gigabytes of protected traffic each month directly within the browser.

Announced last week, this addition has now been officially rolled out with the release of Firefox version 149.0, which was announced earlier today. The rollout is currently gradual, initially available to users in select regions including the United States, the United Kingdom, Germany, and France. Those in the targeted areas will see a prompt appearing in the browser toolbar, inviting them to activate the VPN after logging into their Mozilla account.

The VPN works by directing the browser’s traffic through a dedicated secure proxy server. This process conceals the user’s IP address and location, ensuring privacy during web browsing. Unlike conventional VPN services that encrypt all device traffic, this built-in feature only affects activity within Firefox, making it a lightweight and easy-to-use tool. Mozilla highlights that this setup provides a good level of privacy protection for typical browsing activities, such as using public Wi-Fi networks or handling sensitive information.

Users can enable or disable the VPN at their convenience and are notified as they near the 50GB monthly limit. Additionally, the browser allows for customization by letting users specify up to five websites that should bypass the VPN proxy, offering flexibility for certain trusted sites.

Mozilla has clarified that specific internal operations bypass VPN tunneling to maintain system stability, including user account verification processes and captive portal detection for public network access. The organization emphasizes its minimal data collection approach, gathering only essential metrics like connection state information and anonymized bandwidth statistics, while explicitly avoiding any tracking of user navigation patterns, domain requests, or transmitted content.

As the nonprofit entity responsible for Firefox development, Mozilla continues reinforcing its commitment to user privacy in contrast to browsers built on Chromium foundations. The organization already offers Mozilla VPN as a premium subscription that secures entire devices across all network-connected applications. This newly integrated browser-level VPN serves as an introductory tier, democratizing privacy tools by eliminating financial barriers and setup complexity.

Firefox version 149 delivers multiple enhancements beyond VPN integration. Users gain access to a dual-pane viewing mode enabling simultaneous tab examination, while PDF rendering receives performance boosts through GPU utilization. The browser now implements automated permission revocation for domains identified as sources of abusive notification requests. Security hardening includes stricter controls over JavaScript execution within core browser processes to mitigate exploitation risks. Mozilla's engineering team resolved numerous defects in this update, addressing 19 vulnerabilities classified as high-risk.

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