How To Open .jar Files Automatically in Mac OSX

//How To Open .jar Files Automatically in Mac OSX

How To Open .jar Files Automatically in Mac OSX

A random program that I installed reset the default application (Java) for .jar files on my Macbook, and to reset the behaviour in Mac OSX took a bit more work than I thought. Turns out the “Java Launcher” isn’t in the list of applications that you can select from, in the “Open With…” list. You’ll need to select “Open With”, choose “Other”, and browse to the following:

/Library/Internet Plug-Ins/JavaAppletPlugin.plugin/Contents/Home/bin/java

Ensure that it’s set to “Always Open With”, and you should be set. All .jar files will now be opened with Java in the future.

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By |2016-07-17T12:10:56+00:00July 17th, 2016|Tutorials & Tips|4 Comments

About the Author:

Alvin Poh lives in Singapore, and is interested in marketing, techy stuff, and likes to just figure out how the two can work with each other. He can also be found on Google+.


  1. wizardguy April 4, 2017 at 11:02 pm - Reply

    it didn’t squanch

  2. Matthieu April 15, 2017 at 5:18 am - Reply

    Thanks Alvin, however I figured out that the correct launcher to point to is the jar launcher located here : /System/Library/CoreServices/Jar
    At least it worked for me on a macbook running sierra v10…

  3. Sky January 8, 2018 at 9:10 am - Reply

    doesn’t seem to be working for me.. it doesn’t recognize the file as being an application

  4. Sky January 12, 2018 at 10:15 pm - Reply

    I used the path that you mentioned, but it doesn’t recognize the java file within /bin as a program I can use to run files. Any chance there is a different file to look for?

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