Compare Firefox Focus browser to IceCat browser

Firefox Focus IceCat
Development Status Active Idle
Operating Systems Android, iOS
Linux, macOS, Windows
Year Started 2015 2005
Last updated 2025
Manufacturer Mozilla Foundation Unknown
Rendering Engine Gecko Gecko
AdBlock Native Unknown Unknown
Extensions support Unknown Unknown
Built-in VPN?
License Currently unknown MPL 2.0
Wikipedia Page Firefox Focus on Wikipedia IceCat on Wikipedia
Device Platforms Mobile Desktop
Public Source Code? No https://git.savannah.gnu.org/cgit/gnuzilla.git
Website www.mozilla.org/en-US/firefox/browsers/mobile/focus/ www.gnu.org/software/gnuzilla/