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Microsoft Edge vs Supermium: catalog facts
Microsoft Edge	Supermium
Free Free to download and use. The software is closed source.	Free Free to download from its GitHub repository.
Windows, macOS, Linux, Android, iOS	Windows
Vertical tabs, tab groups, sleeping tabs and a built-in PDF reader are standard, and it runs Chrome extensions…	Current Chromium engine on Windows XP through Windows 8.x Tracks recent Chromium versions
The browser Microsoft ships is proprietary, and it pushes Bing, Microsoft accounts and a growing set of promoted…	Windows only Maintained by a small team, so security fixes may lag behind Chrome
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 23, 2026

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