LibreWolf 145.0.2-1 is a free, open-source web browser built on Firefox that prioritizes privacy and security by removing all telemetry, data collection, and advertising features. The Windows 64-bit installer is 88 MB and supports Windows 10, 11 (64-bit systems). Released in November 2025, this independent browser fork includes enhanced privacy settings, uBlock Origin ad blocker preinstalled, and anti-fingerprinting technology enabled by default.
In This Article
Key Features of LibreWolf
- Zero telemetry and data collection: Unlike mainstream browsers, LibreWolf collects absolutely no user data because the development team does not maintain data collection infrastructure, making tracking technically impossible
- Built-in ad blocking: Ships with uBlock Origin preinstalled and configured with custom filter lists plus Tracking Protection running in strict mode to block invasive advertisements and trackers before page load
- Privacy-respecting search engines: Defaults to privacy-focused search providers like DuckDuckGo, Searx, and Qwant that do not track queries or build user profiles, with Google and Bing intentionally excluded
- Total Cookie Protection (dFPI): Implements Dynamic First Party Isolation to prevent cross-site tracking by isolating cookies to individual websites and automatically deleting them when the browser closes
- Anti-fingerprinting technology: Uses Resist Fingerprinting (RFP) from the Tor Uplift project to make all users appear identical to websites by masking unique browser characteristics
- Automatic URL tracking removal: Strips tracking parameters from website addresses both natively and through uBlock Origin to prevent surveillance through link sharing
- Fast security updates: Gets built from the latest Firefox stable release within three days or often on the same day to ensure rapid security patch deployment
- No sponsored content or bloat: Removes all Mozilla VPN advertisements, Pocket extension, and promotional tiles from the new tab page for a clean, distraction-free browsing experience
What’s New in Version 145.0.2-1
- Enhanced bounce tracking protection: Upgraded anti-tracking system now detects and purges cookies from bounce trackers based on redirect behavior patterns
- Improved tab management: New Tab Overview menu allows seamless sidebar access to view tabs synchronized from other devices across Windows, macOS, Linux, Android, and iOS
- GPU-accelerated graphics: Enabled Canvas2D hardware acceleration by default for Windows users, delivering significant performance improvements for web applications and rendering tasks
- Stricter certificate validation: Implemented enhanced SSL certificate verification checks to prevent connection attempts with expired or invalid certificates
- Updated privacy controls: Refined Content Blocking settings with more granular control over third-party cookies, tracking scripts, and cryptomining protection similar to Brave Browser
- WebGL protection: Maintains WebGL disabled by default to prevent strong fingerprinting vectors while allowing manual enable for specific trusted sites
Technical Details
| Specification | Details |
|---|---|
| Software | LibreWolf – Official Site |
| Version | 145.0.2-1 |
| License | Free (Open Source – MPL 2.0) |
| File Size | 88 MB (64-bit installer), 98 MB (portable) |
| Supported OS | Windows 10, 11 (64-bit) / Linux / macOS |
| Developer | LibreWolf Community |
| Release Date | November 2025 |
| Last Updated | November 30, 2025 |
Download LibreWolf 145.0.2-1
Windows:
- Download LibreWolf 145.0.2-1 for Windows 32/64-bit (88 MB) (Recommended)
- Portable Version for Windows (98 MB)
- Addons
Linux Installation Guides:
macOS:
System Requirements
Minimum:
- OS: Windows 10 (64-bit) or later
- RAM: 2 GB
- Disk Space: 200 MB free
- Additional: Internet connection for initial setup
Recommended:
- OS: Windows 11 (64-bit) / Ubuntu 22.04 LTS / macOS 12
- RAM: 4 GB or higher
- Disk Space: 500 MB free
- Additional: Stable internet connection (2 Mbps or higher)
Frequently Asked Questions
Is LibreWolf free to download and use?
LibreWolf is completely free and open-source software released under the MPL 2.0 license. The Windows 64-bit installer is 88 MB. There are no subscription fees, data collection, or advertising. The browser is maintained by community contributors.
What are the system requirements for LibreWolf?
Minimum requirements include Windows 10 64-bit or later, 2 GB RAM, and 200 MB disk space. For optimal performance, Windows 11 with 4 GB RAM and 500 MB free disk space is recommended.
How do I download LibreWolf for Windows 11?
Download the 64-bit installer (88 MB) from the official LibreWolf website, run the setup file, and follow the installation wizard. Setup takes approximately 2-3 minutes. LibreWolf is fully compatible with Windows 11.
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