Association between MIME types and applications

Cross Desktop Group

David Faure


Ryan Lortie



7 September 2014

Table of Contents

File name and location
Adding/removing associations
Default Application


The Shared MIME database provides a single way to store static information about MIME types and rules for determining a type.

The Desktop Entry specification allows applications to announce which MIME types they support.

This specification solves the remaining issues: which application should open a file by default, how to let the user change the default application, and how to let the user add or remove associations between applications and mimetypes.