Mozilla Firefox ships with its own default settings and data collection options, while LibreWolf takes the same Firefox base and changes those defaults for privacy. Google Chrome and Microsoft Edge are other choices in the same category. This page covers version 159.0.1-1 for Windows, released on October 28, 2026.
Free, open source and no paid tier
LibreWolf is free, and the licence is MPL-2.0. It has no ads, no in-app purchases and no paid edition.
The developer is LibreWolf, with a website at librewolf.net. The Windows package ID is LibreWolf.LibreWolf, and the installer is about 167 MB.
Anti-tracking settings and removed telemetry
LibreWolf is an independent, customised version of Firefox. Its stated goals are privacy, security and user freedom. It aims to raise protection against tracking and fingerprinting, and it adds a few security improvements.
The developer reaches this through privacy and security oriented settings and patches. It also aims to remove telemetry, data collection and annoyances. Anti-freedom features such as DRM are disabled, which may affect sites that need DRM to play protected content.
The tags list Gecko, Quantum and SpiderMonkey, which points to the Firefox engine underneath.
Version 159.0.1-1 and the update record
The current version is 159.0.1-1. Both the release date and the last update date are October 28, 2026.
LibreWolf pros and cons
Pros
- Free, with an MPL-2.0 licence
- Aims to reduce tracking and fingerprinting
- Telemetry and data collection are meant to be removed
- Built on Firefox, with Gecko and SpiderMonkey tags
- Download is served from the official host dl.librewolf.net
Cons
- DRM is disabled by design, which can limit some streaming sites
- Version 159.0.1-1 is the current release, but its changes are not described anywhere users can read them.
- The installer is about 167 MB, large for a lightweight browser
- Limited visual previews of the app
Is LibreWolf safe?
The Windows installer for LibreWolf comes straight from the project's own server, dl.librewolf.net. The developer is LibreWolf, and the browser is released under the MPL-2.0 license. It is a privacy-focused build of Firefox that removes telemetry and data collection, and the current version is 159.0.1-1.
How to install LibreWolf
- 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 LibreWolf from the Start menu.
