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DuckDuckGo Browser vs Firefox: catalog facts
DuckDuckGo Browser	Firefox
Free The software is free under its open-source licence. Hosting, hardware and external…	Free Free software from a non-profit-owned foundation. Mozilla sells separate subscription…
Windows, macOS, Android, iOS	Windows, macOS, Linux, Android, iOS
Tracker and ad blocking, cookie consent handling and email tracker removal are on by default rather than being…	Total Cookie Protection stops cookies following you between sites An engine that is not Chromium, which matters for the health of the web
The desktop version is Windows and macOS only, and the extension support is far narrower than Chrome or…	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
Downloadable app	Downloadable app
Open source	Open source
License: Apache-2.0	License: MPL-2.0
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 20, 2026

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