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Firefox, Linux, and the Java Plugin

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In a perfect world, Firefox, Linux and the Java plugin would get along happily. You’d install all three, and things would just work. If memory serves, that’s exactly what happened under Ubuntu. However, after installing Fedora 17, it just didn’t want to work for me (I’m not blaming Fedora, mind you. I like to live on the bleeding edge, so I install Java 7 nightlies from tar balls and not RPMs, so I probably broke something along the way). After much fumbling and guessing, I finally found a solution, which I’ll share here in case you’re in the same boat:

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$ mkdir $HOME/.mozilla/plugins
$ ln -s $PATH_TO_JRE/lib/amd64/libnpjp2.so $HOME/.mozilla/plugins/libnpjp2.so

And restart Firefox. You can verify that Java (i.e., applets and webstart) is working by going here.

About

My name is Jason Lee. I am a software developer living in the middle of Oklahoma. I’ve been a professional developer since 1997, using a variety of languages, including Java, Javascript, PHP, Python, Delphi, and even a bit of C#. I currently work for Red Hat on the WildFly/EAP team, where, among other things, I maintain integrations for some MicroProfile specs, OpenTelemetry, Micrometer, Jakarta Faces, and Bean Validation. (Full resume here. LinkedIn profile)

I am the president of the Oklahoma City JUG, and an occasional speaker at the JUG and a variety of technical conferences.

On the personal side, I’m active in my church, and enjoy bass guitar, running, fishing, and a variety of martial arts. I’m also married to a beautiful woman, and have two boys, who, thankfully, look like their mother.

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