FileTypeGuard

Lightweight macOS utility that locks file-type associations so other apps can't silently hijack them.

Desktopfreeglobal

FileTypeGuard is a lightweight, free macOS utility that locks which app opens each file type and automatically restores that setting whenever another app silently hijacks the association during install or update. It's aimed at Mac users tired of repeatedly re-setting their default app for PDFs, images, or other file types.

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