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Firefox vs Fennec F-Droid: catalog facts
Firefox	Fennec F-Droid
Free Free software from a non-profit-owned foundation. Mozilla sells separate subscription…	Free Free and open source under the Mozilla Public License 2.0.
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	Tracks current Firefox releases closely Proprietary components and telemetry removed
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	Still connects to Mozilla services that can track users Requires Android 8.0 or newer
Downloadable app	Downloadable app
Open source	Open source
License: MPL-2.0	License: MPL-2.0
No account needed	No account 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 1, 2026

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