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I've just installed the newest java, because firefox blocks the old version. I used the tutorial from Because I had some trouble once, I knew that there are multiple library folders, so I linked into all mozilla plugin folders that there are.


java -version returns

java version "1.7.0_07"
Java(TM) SE Runtime Environment (build 1.7.0_07-b10)
Java HotSpot(TM) 64-Bit Server VM (build 23.3-b01, mixed mode)

But when I go to firefox plugins, it's not listed. What do I need to do, so that firefox recognizes java?

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you try some similar to ln -sf /opt/java/jre1.7.0_05/lib/i386/ ~/.mozilla/plugins/ ? – juanpablo Jan 19 '13 at 3:49
I think you should install IcedTea Java plugin (a package without any special icons) through Software Center. When I installed it, all other Java’s got checked in my Software Center and Java listed in Firefox plugins as well. – AliNa Mar 6 '13 at 21:36

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