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Firefox vs Orion: catalog facts
Firefox	Orion
Free Free software from a non-profit-owned foundation. Mozilla sells separate subscription…	Free Free to download and use. The software is closed source.
Windows, macOS, Linux, Android, iOS	macOS, Linux, iOS
Total Cookie Protection stops cookies following you between sites An engine that is not Chromium, which matters for the health of the web	It is the only WebKit browser that runs extensions from all three major stores, and it ships with…
A small number of sites are still built and tested only against Chromium Mozilla’s revenue comes largely from a search deal, which shapes some defaults	The browser is closed source, the extension compatibility layer does not work for every add-on, and it is…
Downloadable app	Downloadable app
Open source	Closed source
License: MPL-2.0	License not stated
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 20, 2026	Official website Full listing and sources Checked September 22, 2026

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