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How can one add a new MIME type in OS X?
JAM
Posted 2012-05-08T01:16:28.143
Reputation: 349
How to associate MIME type with a handler in OS X?
Answers
6
The easiest would be to download and install RCDefaultApp. Go to System Preferences » Default Apps, then the MIME Types tab.
Enter your new MIME type in the text box below, press the + button, and select your handler.
Via command line, you need to edit the ~/Library/Preferences/com.apple.LaunchServices.plist preference list. In its array of LSHandlers, you need to insert a Dictionary containing your new MIME type as:
LSHandlerContentTag– the MIME typeLSHandlerContentTagClass, which ispublic.mime-typeLSHandlerRoleAll, which specifies the Bundle ID of the application that handles it, e.g.org.videolan.vlc. You find out the bundle ID by inspecting the.appfolder and theInfo.plistpreference list therein.
slhck
Posted 2012-05-08T01:16:28.143
Reputation: 182 472
Awesome answer... Wondering if you were aware of which apps might add in this way? I see none in my LSHandlers that use this format.... Is that because LSHandlerContentType (with values like "public.css" instead of "text/css") is preferred for this? ( https://apple.stackexchange.com/a/9883/206073 seems to suggest such a preference, at least in the case of comparing LSHandlerContentType to the "public.filename-extension" LSHandlerContentTagClass)
Latter question now asked at https://apple.stackexchange.com/questions/328325/preferred-way-to-set-default-application-by-content-mime-type
– Brett Zamir – 2018-06-21T02:12:16.3501@BrettZamir Good question – that's beyond my knowledge. It could also be that the default has been changed in the meantime (my answer is from 2012). – slhck – 2018-06-21T05:33:34.843
Is there a way to do the same from the command line? Possibly by editing mime.types? – JAM – 2012-05-08T13:38:11.743
See my updated answer. Are you talking about apache2/mime.types? Not sure if you're supposed to edit that. Can you elaborate a bit why you need to edit it? What's your context? Without context, it's hard to help you. – slhck – 2012-05-08T14:59:42.413
1
To view mime-type of a file in terminal:
file --mime-type -b file-name
Mostafiz Rahman
Posted 2012-05-08T01:16:28.143
Reputation: 119
It's not clear what you're talking about. Add a new MIME type so that what happens exactly? – David Schwartz – 2012-05-08T02:12:38.857
So that it's handled by some application, see my answer @DavidSchwartz – slhck – 2012-05-08T06:59:16.323