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Basilisk vs LibreWolf: catalog facts
Basilisk	LibreWolf
Free The open-source application is available without a license fee.	Free Free and open source under the MPL 2.0, maintained by volunteers.
Windows, macOS, Linux	Windows, macOS, Linux
Runs classic XUL extensions that no current browser supports Independent of Chromium and of current Firefox	Deletes cookies and website data on close by default Ships uBlock Origin with custom default filter lists and strict tracking protection
Small development team, so security fixes and web compatibility lag Many modern sites do not work correctly	The aggressive defaults break some sites and log you out every time you close the browser Resist Fingerprinting changes timezone and window size reporting, which confuses a few web apps
Downloadable app	Downloadable app
Open source	Open source
License: MPL-2.0	License: MPL-2.0
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 20, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.