How to Block Ads in Librewolf Browser - LibreWolf

LibreWolf 148.0.2 blocks most ads automatically through its built-in content blocking settings, which come pre-configured to stop ads and tracking by default. No separate installation required.

Built-In Content Blocking

LibreWolf arrives with ad-blocking and content blocking already enabled. Open Preferences (Ctrl+, on Linux or Windows). Navigate to Privacy & Security. Under "Enhanced Tracking Protection," you'll see it's set to "Strict" — this removes ads, trackers, and malicious content automatically.

This privacy-focused Firefox fork prioritizes blocking ads without extra software.

Adding an Ad Blocker Extension

Want stronger filtering? Install uBlock Origin or similar ad blocker extensions for additional protection. Click the menu button (three horizontal lines). Select Add-ons and Extensions. Search for your preferred ad blocker.

Click "Add to LibreWolf." The extension works alongside built-in content blocking for comprehensive ad removal across all websites.

Fine-Tuning Your Settings

You can customize how LibreWolf handles ads further. Return to Preferences > Privacy & Security. Under "Cookies and Site Data," enable "Delete cookies and site data when LibreWolf is closed." This prevents tracking cookies that deliver targeted ads. You can also manage permissions per site — click the lock icon in the address bar to block specific ad networks on individual pages.

Practical Recommendation

LibreWolf's default configuration already does the heavy lifting. Most users won't see ads on standard websites without installing anything extra. The browser's design specifically rejects telemetry and tracking — core features that enable ad targeting. If you encounter persistent ads on particular sites, installing uBlock Origin takes just seconds and provides industry-standard filtering.

Test the browser as-is first. You'll likely find that blocking ads in LibreWolf happens automatically.