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GhostCat
Asked: 2017-03-21 03:52:57 +0800 CST

How to change java version for Firefox ESR 52?

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I "installed" FF52 esr this morning, in order to still be able to use java within the browser (see here).

Works fine; but FF uses an older version of Java; it tells me it is using Java 1.7.

But when I do a simply java -version command line, I am told that I have Java 1.8 there.

So how exactly do I control which Java version is "plugged in"?

16.04

1 Answers

  1. Funny thing: I knew this procedure earlier on; but I thought at some point it would be no longer working. But it is still super simple:

    • stop firefox
    • cd into ~/.mozilla
    • mkdir plugins
    • cd plugins
    • ln -s /from/whatever/java/installation/lib/amd64/libnpjp2.so

    That's it. You fire up firefox again; and that version of java should be used.

    Nicely documented by Oracle, here or there.

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