With duti you can set the default application for a document type (UTI) or for a URL scheme.

  • Install: brew install duti

  • Create config file vim ~/.duti:

      # bundle id         UTI/ext/MIME type   role

  com.apple.Safari    public.html         all
  com.sublimetext.3   public.plain-text   all

  # bundle id         URL scheme

  org.mozilla.Firefox feed
  • Apply settings: duti ~/.duti
  • Enjoy!

PS. You can use mdls utility to determine UTI is for a specific file. And codesign (codesign --display -r - <path>) to find a bundle id of app.