Compare Firefox Focus browser to SlashB browser

Firefox Focus SlashB
Development Status Active Discontinued
Operating Systems Android, iOS
Linux, macOS, Windows
Year Started 2015 2020
Manufacturer Mozilla Foundation Alberto Malagoli
Rendering Engine Gecko Unknown
AdBlock Native Unknown Unknown
Extensions support Unknown Unknown
Paid Yes
Built-in VPN?
License Currently unknown Currently unknown
Wikipedia Page Firefox Focus on Wikipedia No
Device Platforms Mobile Desktop
Public Source Code? No No
Website www.mozilla.org/en-US/firefox/browsers/mobile/focus/ slashb.app