Compare software

Firefox ESRMicrosoft Edge
Free

Free and open source; Mozilla offers optional paid professional support for organisations.

 Free

Free to download and use. The software is closed source.

Windows, macOS, Linux Windows, macOS, Linux, Android, iOS
  • Long-term stable feature set for managed deployments
  • MSI and PKG installers plus group policy templates
  • Vertical tabs, tab groups, sleeping tabs and a built-in PDF reader are standard, and it runs Chrome extensions…
  • New features arrive later than in regular Firefox
  • Mainly aimed at organisations rather than home users
  • The browser Microsoft ships is proprietary, and it pushes Bing, Microsoft accounts and a growing set of promoted…
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
Not stated if it works offline Not stated if it works offline

Checked September 24, 2026

Checked September 22, 2026

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