Getting Markdown Viewer To Display HTML Formatted Markdown Content in Firefox Under Linux

I recently installed the Markdown Viewer 1.3 in Firefox 23.0 under Fedora Core  18.  When I went to open a .md file in the browser it prompted me to download it.

To configure Firefox to display the markdown in the browser do the following:

Edit the ~/.mozilla/firefox/*default/mimeTypes.rdf file.

If there is not yet an existing RDF node for ‘text/plain’ add it, and add “md” as a file extension.

<RDF:Description RDF:about=”urn:mimetype:text/plain”
        NC:value=”text/plain”
        NC:fileExtensions=”md”
        NC:description=”Text Document”>
    <NC:handlerProp RDF:resource=”urn:mimetype:handler:text/plain”/>
</RDF:Description>