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Firefox vs Oku: catalog facts
Firefox	Oku
Free Free software from a non-profit-owned foundation. Mozilla sells separate subscription…	Free No price is listed; the Linux build is distributed through Flathub.
Windows, macOS, Linux, Android, iOS	Linux
Total Cookie Protection stops cookies following you between sites An engine that is not Chromium, which matters for the health of the web	Notes attached to the pages you browse Build, edit and publish sites from the browser
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	Not yet ready for production use, per the developers Linux only; macOS and Windows are on a waitlist
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 October 2, 2026

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