How-to

How to Make ComfortFiles Your Default File Viewer

Updated July 20, 2026

Open the ComfortFiles menu in the menu bar and click Use as Default File Viewer. From then on, folders you open elsewhere — double-clicked on the Desktop, opened from another app — open in ComfortFiles instead of Finder.

Turning it on

  1. Click ComfortFiles in the menu bar (next to the Apple menu).
  2. Select Use as Default File Viewer. A checkmark appears.

Turning it off

Same place: click Use as Default File Viewer again to uncheck it. Folders open in Finder again immediately.

Good to know

  • Finder keeps running either way. macOS requires it — the Desktop and system dialogs are Finder. This setting only changes which app opens folders.
  • Uninstalling reverts automatically. If you delete ComfortFiles, macOS falls back to Finder on its own — no cleanup needed. (Also covered in the FAQ.)