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Firefox vs Omni Browser: catalog facts
Firefox	Omni Browser
Free Free software from a non-profit-owned foundation. Mozilla sells separate subscription…	Free Free and open source under the GPL-3.0 licence.
Windows, macOS, Linux, Android, iOS	Android
Total Cookie Protection stops cookies following you between sites An engine that is not Chromium, which matters for the health of the web	Gecko engine with native Firefox WebExtension support Encrypted private locker for files and notes
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	Experimental, with bugs and changing features expected Developers advise against using it as a primary browser yet
Downloadable app	Downloadable app
Open source	Open source
License: MPL-2.0	License: GPL-3.0
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.