Mullvad Browser 16.0 is a free Windows browser built by Mullvad VPN together with the Tor Project. It runs on Gecko and aims to reduce tracking and browser fingerprinting, which matters because hiding your IP address alone does not stop data collection. The installer is 103.4 MB.
Free and open source, with no paid tier
The browser is free, and the license is MPL-2.0. It has no ads, in-app purchases or subscription.
Mullvad VPN is the developer, but the browser is a separate product. Pairing it with a trustworthy VPN is described as a way to resist mass surveillance, but a VPN subscription is not required.
Fingerprint resistance, not just IP masking
The project starts from a simple point: a site can identify you through your IP address, third-party cookies, tracking scripts and browser fingerprints. Hiding the IP alone does not stop that data collection.
The browser is designed to minimize tracking and fingerprints. It runs on Gecko, the engine behind Firefox, and the changelog shows NoScript 13.6.19.90401984 and uBlock Origin 1.71.0 among its updated components.
Version 16.0 and the Firefox 151 rebase
Version 16.0 was released and updated on October 29, 2026. The changelog moves the base to Firefox 151.0a1, and several bug entries deal with that rebase.
One item backports a fix for a date format leak, which fits the privacy goal. Another addresses broken privacy settings in version 151. Windows gets a separate change in how the SSO setting is hidden.
What's new in 16.0
Version 16.0 updates Firefox to 151.0a1, NoScript to 13.6.19.90401984 and uBlock Origin to 1.71.0. It also backports a fix for a date format leak in Firefox 151.
Mullvad Browser pros and cons
Pros
- Free to use
- Open-source MPL-2.0 license
- Built with the Tor Project to limit tracking and fingerprinting
- Ships with NoScript and uBlock Origin updates in 16.0
- Download comes from the official github.com host
Cons
- The package is 103.4 MB, large for a lightweight pick
- Speed and compatibility compared with Chrome or Firefox are untested here
- Speed and compatibility compared with Chrome or Firefox are unconfirmed
Is Mullvad Browser safe?
The publisher is Mullvad VPN, and the browser's source is released under the MPL-2.0 license. Version 16.0 updates Firefox to 151.0a1, along with the bundled NoScript and uBlock Origin extensions, and includes a fix for a date format leak.
How to install Mullvad Browser
- Press the download button to get the official file.
- Run the installer you saved and confirm the Windows security prompt if the publisher matches.
- Follow the setup steps, then start Mullvad Browser from the Start menu.
