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Firefox vs Arc Search: catalog facts
Firefox	Arc Search
Free Free software from a non-profit-owned foundation. Mozilla sells separate subscription…	Free Free to download.
Windows, macOS, Linux, Android, iOS	Android, iOS
Total Cookie Protection stops cookies following you between sites An engine that is not Chromium, which matters for the health of the web	Browse for Me can save time on multi-page research tasks Clean, minimal mobile browsing interface
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	AI summaries can miss nuance or context in source pages Mobile-only, no desktop counterpart under this name
Downloadable app	Downloadable app
Open source	Closed source
License: MPL-2.0	License not stated
No account needed	Not stated if an account is 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 22, 2026

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