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Firefox vs Angelfish: catalog facts
Firefox	Angelfish
Free Free software from a non-profit-owned foundation. Mozilla sells separate subscription…	Free Free KDE software.
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	Touch-friendly interface suited to Linux phones Regular releases alongside KDE Gear
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	Basic feature set compared with mainstream browsers Linux only
Downloadable app	Downloadable app
Open source	Open source
License: MPL-2.0	License not stated
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 September 24, 2026

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