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Fennec F-Droid vs Fulguris: catalog facts
Fennec F-Droid	Fulguris
Free Free and open source under the Mozilla Public License 2.0.	Free Free and open source.
Android	Android
Tracks current Firefox releases closely Proprietary components and telemetry removed	Open source with a long commit history Built-in ad blocking
Still connects to Mozilla services that can track users Requires Android 8.0 or newer	Android only Smaller project with less documentation than mainstream browsers
Downloadable app	Downloadable app
Open source	Open source
License: MPL-2.0	License: MPL-2.0 / CPAL-1.0
No account needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 1, 2026

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