Most free VPN services come with trade-offs: slow speeds, strict data limits, or business models that rely on selling user data. Mozilla aims to offer a different approach. Beginning March 24, the built-in Firefox VPN will be available to users in the US, France, Germany, and the UK when Firefox 149 is released. The feature is integrated directly into the browser, so no separate download or extension is required.
The built-in VPN runs through Mozilla-managed servers and masks your IP address while you use the browser. Mozilla says users receive 50 GB of free monthly data, which is substantially more than some other browser-integrated VPNs. To enable the feature you will need a Mozilla account, a simple requirement that allows the company to manage access and usage limits.
What you should know before turning it on
There are important limitations and considerations to understand before relying on the browser VPN as your sole privacy solution. The Firefox built-in VPN protects only traffic that flows through the Firefox browser itself. Any network activity generated by other applications, background services, or separate browsers on the same device will not be routed through Mozilla’s VPN. That means streaming apps, system-level synchronization, and file backups performed outside Firefox remain outside of the VPN’s protection.
Performance is optimized by connecting users to the nearest available server automatically. That design choice typically improves speed and reduces latency for everyday browsing, but it also prevents using the feature to bypass geographic restrictions. If your goal is to access content that is restricted to a different country—such as a streaming library available only in another region—the built-in browser VPN will not serve that purpose.
Mozilla emphasizes privacy practices for the browser VPN. The company states it will not log the specific websites you visit while using the browser feature, and any account-related data retained for operational reasons is removed after a limited retention period. This browser-only VPN is distinct from Mozilla’s paid VPN product, which offers system-wide protection for multiple devices; the Firefox built-in option is strictly limited to browser traffic and is offered at no charge.
For users who already prioritize privacy by choosing a privacy-focused browser, the integrated VPN can add convenience and a low-friction layer of protection for routine web browsing. It is especially useful when connecting over public Wi-Fi networks, where masking your IP and encrypting browser traffic can reduce the risk of casual eavesdropping. Because the VPN is a browser feature, setup is quick and requires minimal technical knowledge compared with installing and configuring a standalone VPN client.
That said, if your threat model requires comprehensive protection for all internet-connected activity on a device—everything from email clients to cloud backup services to gaming clients—you should consider a full-featured, paid VPN service that provides system-wide coverage. Similarly, if you rely on VPNs to access geo-restricted services or to appear as if you are browsing from a specific country, a browser-only service that routes traffic to the nearest server will not meet those needs.
Mozilla began testing this built-in VPN feature in beta with a limited group of users before expanding availability. The rollout with Firefox 149 represents a wider release for eligible regions. If you value convenience and want an easy, browser-level privacy layer without installing extra software, the Firefox built-in VPN is a practical option to try. Just remember its scope is limited to browser traffic, and evaluate whether that scope aligns with your overall privacy and security goals.