Frequently Asked Questions
Short answers to common questions about downloads, installation, privacy, DRM and troubleshooting. Each answer links to detailed guides where appropriate.
1. Where can I download LibreWolf for Windows?
Get official builds on our Download page. That page includes installer and portable builds, mirrors and SHA256 checksums — verify before running.
2. Should I use the installer or portable build?
For most users the installer is recommended — it integrates with Windows and supports updates. Use the portable build if you need no-install, no-admin usage (USB, testing). See Portable vs Install for a full comparison.
3. How do I verify the download (SHA256)?
On Windows, run PowerShell:
Get-FileHash -Path C:\path\to\librewolf-150.0.1-1-windows-x86_64-setup.exe -Algorithm SHA256
Compare the output to the SHA256 published on our Download page. If they differ, do not run the file.
4. I clicked Download but Google Analytics shows no event — why?
This site respects privacy: analytics are disabled until you Accept cookies. If you accept, events are sent via GA4. Also, direct downloads or redirects can navigate away before JS fires. For reliable counting we recommend a server-side redirect endpoint which logs downloads and optionally sends server-side Measurement Protocol hits.
5. Can I install LibreWolf with winget?
Yes. We provide winget guidance on Install with winget. Confirm the official package ID on the Package ID page before installing.
6. How do I watch Netflix or other DRM content?
Enable EME and allow Widevine CDM. See DRM & Streaming and Netflix-specific instructions. Be aware that enabling DRM increases fingerprinting risk; consider a separate profile for streaming.
7. Is telemetry enabled in these builds?
No — builds on this site are distributed with telemetry disabled by default. Review Telemetry & Privacy for exact prefs and how to harden or audit your installation.
8. What if the installer is blocked by SmartScreen or Defender?
SmartScreen may warn if the binary is new or uncommon. Verify SHA256 and, if you trust the file, choose 'More info' → 'Run anyway'. Alternatively, use the portable build or contact us via the GitHub page for assistance.
9. How do I update LibreWolf?
For installer builds, update manually via our Download page or use winget:
winget upgrade --id <PACKAGE_ID>For portable builds, download the new archive and migrate your profile. See Update guide for full details.
10. Where are profiles stored and how do I move them?
Profile locations differ between installer and portable builds. Installer profiles are typically in %APPDATA%\LibreWolf, while portable profiles are inside the portable folder. See Profile & Location for exact paths and migration steps.
11. I have playback errors or extensions missing — how to troubleshoot?
Start with a clean profile and disable extensions. Check console logs and CDM status in about:support. The Troubleshooting page lists common errors and fixes.
12. How can I be sure the build is trustworthy?
Verify checksums and PGP signatures if provided, inspect the official GitHub releases, and review the build process. We recommend reading the GitHub page and the Releases for proofs and changelogs.
13. Can I contribute to the builds or packaging?
Yes — see GitHub for contribution guidelines, packaging instructions and how to submit winget manifests.
14. How is my download privacy handled if I decline cookies?
If you decline analytics cookies, no GA cookies are set. For basic download metrics we may use anonymous server logs (if enabled) that do not contain PII. See Privacy for details.
15. I found a bug or security issue — what now?
Report bugs via the project's GitHub issues or the contact methods listed on the GitHub page. For security issues, include reproduction steps, logs and severity to help triage.