Compare software

Firefox vs Opera Mini: catalog facts
Firefox	Opera Mini
Free Free software from a non-profit-owned foundation. Mozilla sells separate subscription…	Free Free to download and use.
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	Data compression for slow or metered connections Built-in ad blocker and PIN-locked private tabs
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	Closed source Extras like football news, wallet and AI chat add clutter for those who want a plain browser
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 October 1, 2026

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