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Arctic Fox vs Supermium: catalog facts
Arctic Fox	Supermium
Free Free, with the source code published on GitHub.	Free Free to download from its GitHub repository.
Windows, macOS, Linux	Windows
Runs on old systems such as Mac OS X 10.6, Windows XP and PowerPC Linux Backports security fixes from Firefox and TenFourFox	Current Chromium engine on Windows XP through Windows 8.x Tracks recent Chromium versions
Based on an old Pale Moon engine, so modern sites may not render well Often has to be built from source on less common platforms	Windows only Maintained by a small team, so security fixes may lag behind Chrome
Downloadable app	Downloadable app
Open source	Closed source
License not stated	License not stated
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 2, 2026	Official website Full listing and sources Checked September 23, 2026

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