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Pale Moon vs LibreWolf: catalog facts
Pale Moon	LibreWolf
Free The software is free under its open-source licence. Hosting, hardware and external…	Free Free and open source under the MPL 2.0, maintained by volunteers.
Windows, macOS, Linux	Windows, macOS, Linux
It keeps the pre-Quantum Gecko engine and the old XUL extension model, so add-ons that Firefox dropped still…	Deletes cookies and website data on close by default Ships uBlock Origin with custom default filter lists and strict tracking protection
The source is MPL but the official binaries carry a separate branding licence, and its older engine misses…	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.