Ubuntu :: Firefox: Java Plugin Missing ?

Jan 19, 2011

Recently it appeared to me that my java-plugin is missing. (apparently I don't need it that often).

I've had various upgrades of firefox on my machine, currently i've got version 3.6.13.

I tried to check the plugin directory for the java-plugin - only to find out that I have more than one:

I found out that the other plugins I use reside in /usr/lib/mozilla/plugins. In this directory there is

All this has cost me hours now - but still I have no java-plugin. Quite frustrating.

How can I get a working java-plugin? How can I clean up all this plugin mess?

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Slackware :: Installing Java Error - When Trying To Run A Java App With The Firefox Plugin - Browser Crashe

May 29, 2011

Code: ~ $ /usr/java/jre1.6.0_25/bin/java -showversion Error occurred during initialization of VMjava/lang/NoClassDefFoundError: java/lang/Object

That's the error I get. When trying to run a java app with the firefox plugin, the browser simply crashes if it's the 64bit java or tells me it's not installed if it's the 32bit version.

I'm at a loss as to what to do. I think it has something to do with leftover gunk from a previous version I misinstalled(Is that even a word?) Anyway, the only thing that google could come up with was a solution for windows which laid blame on Bill Gates for having a bunch of pf (java prefetch) files stuffed into c:windows for no apparent reason. The solution was to delete them, but I can't seem to find the java prefetch folder in linux. The method I used is downloading the rpm from java.com the rpm2tgz then installpkg then cp libnpjp2.so to firefox plugins folder.

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Ubuntu :: Install Java And Firefox Java Plugin On 10.10?

Jan 28, 2011

How to install java and firefox java plugin on Ubuntu 10.10?

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Debian :: Missing 64 Bit Java Plugin ?

Mar 12, 2011

Recently I installed DEBIAN 6.0 amd64. Since then I have been unable to do netbanking (at least with linux) due to the missing 64bit java applet plugin, which does the authentication. I cannot get the 32bit plugin working with my browsers (epiphany, iceweasel).

Mozilla.org remmonds using a 32bit browser.

I then installed FIREFOX (32bit), however, it refuses to run : "unable to locate libgtk-x11..." to make it short: the library actually exists on my system (I located it), something else must be wrong.

My questions: will I be better off reinstalling the 32bit version of DEBIAN ? (or what about the possibility of a 64bit java applet plugin being released in near future- will this be wishful thinking or a realistic hope?) as a matter of fact, I have used the java applet since REDHAT version 5 or 6, a lot of years ago, so this plugin-trouble really takes me by surprise.

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OpenSUSE :: FireFox 5.0 - With IcedTea - Plugin Error: "Failed To Run /usr/lib64/jvm/java-1.6.0-openjdk/jre/bin/java"

Jul 10, 2011

I use openSUSE 11.4 64 bits, KDE and FireFox 5.0. I regularly update. When trying to reach my bank, I get the following error: Code: icedteanp plugin error: Failed to run /usr/lib64/jvm/java-1.6.0-openjdk/jre/bin/java. For more detail rerun "firefox -g" in a terminal window. Is there anything I can do to remediate ? Does IcedTea everything that Java does?

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Ubuntu :: Firefox 3.7 And Java-plugin ?

Jan 1, 2010

Anyone know how to get the sun java plugin to work with firefox 3.7? Any files I need to copy over to a different folder or anything?

I just installed Firefox 3.7 from the Mozilla Daily PPA and thats the only thing currently not showing up.

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Ubuntu :: Firefox And Java Plugin ?

Aug 27, 2010

I opened Firefox, and tried to use an Internet speed tester that requires Java. I've always used this with no problems. Today, I'm having problems with it. It told me to check that my Java plugin was enabled, or whatnot. I looked at Tools > Add-Ons > Plugins, and found that Java is gone....

What's up with that? I'm using the latest version of Firefox (version 3.6.8 / Mozilla Firefox for Ubuntu cononical - 1.0) on Ubuntu 9.10.

I checked with Synaptic Package Manager, and I found sun-java6-jre, and all of it's related packages, openjdk-6jre-* packages, etc. were installed (over ten packages with 'java' or 'jre' and '6' in the package names).

So, I don't understand why Tools > Add-Ons > Plugins doesn't show my java plugin anymore. I also checked about: plugins (had to put a space between the colon and 'plugins' because a smiley shows up aboutlugins), but there was nothing in there about java either.

What's going on? Has Ubuntu decided it doesn't want to use Java (I remember reading something about Oracle changing the license for Sun Java somewhere)? Or is this a fluke?

Either way. Synaptic Package Manager says Java is installed... So, what else do I need to do to fix this? I read other posts about Firefox and Java, but they were about installing java, and the like, and I have Java installed....

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Ubuntu :: 64 No Java Firefox Plugin

Sep 24, 2010

Ubuntu Desktop 10.04 64 no Java Firefox plugin

sudo apt-get install sun-java6-plugin


Couldn't find package sun-java6-plugin

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Ubuntu :: Get Java Plugin Onto Firefox ?

Dec 26, 2010

At first, I enabled the partner source and installed "sun-java6-plugin", as that was listed in an earlier Ubuntu install's package list. But Firefox does not see this plugin (even after a reboot). So I removed that package and its friends, and installed "icedtea6-plugin" as found on [url], but this does not work, either. This is with Ubuntu 10.10 for i386 on an ASUS Eee PC 900.

How to get a Java plugin working? I know I've had it working before without having to do anything like this. But that could have been an earlier version of Firefox. Could Firefox now be broken? Or could they have blocked Java, now?

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Ubuntu :: Java Plugin Is Not Being Detected In Firefox?

Feb 28, 2010

I have Ubuntu Karmic x32 and the Firefox version from the Mozilla Launchpad ppa, and Firefox isn't detecting the java plugin at all. As in, it's not even being listed in the plugins manager. What should I do? If I need to give any more details about my system,

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Ubuntu :: Can't Get Java Plugin To Work In Firefox

Mar 24, 2010

I have tried everything according to the instructions.

My packages:

$ dpkg -l | grep java6
ii sun-java6-bin 6-15-1 Sun Java(TM) Runtime Environment (JRE) 6 (architecture depend
ii sun-java6-fonts


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Ubuntu :: Firefox 3.6.3 - Java Plugin Not Loading

Apr 15, 2010

My Java plugin is not loading on Firefox. I need it to load, but FF doesn't even recognize Java is installed. It works on Google Chrome (which would be nice... except the plugin is buggy there)

Here's the background
* I'm running Firefox 3.6.3, through the repository on
Code: [URL]
* My process list includes:
23679 ? 00:00:00 firefox
23688 ? 00:07:31 firefox-bin
* I run NoScript, but I've had it work before w/NoScript, and everything is currently allowed. I'm fairly sure it has rather to do with FF 3.6.3.
* My about.config settings:

* My directory settings:

patrick@patrick-laptop:/usr/lib/jvm$ ls
java-6-sun java-6-sun-

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Ubuntu :: Enable Java Plugin In Firefox?

Aug 10, 2010

I am unable to install and enable Java plugin for the firefox web browser. I have already installed open jdk. I also tried to install jre 6. But nothing worked..

I need to install java for firefox very urgently

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Ubuntu Installation :: Java Plugin For Firefox?

Jul 6, 2011

New ubuntu installation; how do I install the java plugin for firefox?

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Ubuntu :: Need Offline Java Plugin For Firefox 4?

Jul 19, 2011

I installed xubuntu 11.04 recently. I need offline java plugin for firefox 4.

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Fedora :: Java Plugin For Firefox In F13?

May 29, 2010

Has anyone here gotten the Sun Java plugin (1.6.0_20) working in Firefox under F13? I'm using the Firefox 3.6.3-4 RPM supplied by F13, and I created the link in /usr/lib/mozilla/plugins to ${JAVA_HOME}/jre/plugin/i386/ns7/libjavaplugin_oji.so as I've always done, but the plugin fails to show up when I check the plugins in Firefox. I installed some other plugins in /usr/lib/mozilla/plugins and they work fine, only Java doesn't work. It's weird because I've never had a problem getting the Java plugin to work in Firefox before this, and I've done it a million times.

I don't have the Fedora-supplied java packages installed, so it's not a issue of conflicting plugins. And the plugin does work in Opera. I also tried the 1.6.0_18 plugin from Sun, and that didn't work in Firefox either, though it works in F11. I can't figure out what's causing this just in F13. So far this is the only problem I've had in F13, everything else has worked great.

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Fedora :: Firefox Plugin For Java?

Aug 21, 2010

firefox plugin for java. I searched the threads but no joy. this is what I have:

[root@...]# rpm -qa | grep java


and when I type in firefox: <about: plugins>; there are no references to java.

what's the deal with this line in the code??? --> system-switch-java-1.1.5-1.fc12.noarch?

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Fedora :: Firefox 4 And Java Plugin

May 6, 2011

I recently found out that my Firefox 4 plugin for Java is not working. My problem is that i have Java installed (unfortunately I found out that I accidentally installed the Sun Java and not the OpenJDK) and it is working, but the plugin just refuses to work.

However it should be installed because of the following output:


So I thought that maybe the wrong Java version is used, but it doesn't seem to be so:


There are 4 programs which provide 'java'.

So in theory OpenJDK should be selected and work with Firefox, unfortunately it doesn't.

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Red Hat :: How To Install The Java Plugin For Firefox

Apr 23, 2010

I am trying out the RHEL6 x86_64 beta. My question is how do I install the Java plugin for Firefox. OpenJDK appears to be installed, but there is no Firefox plugin for it in the "Add/Remove Software" program. I am not part of the RHN. Is it only in the RHN repos?

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Slackware :: 64 Bit Java Plugin For Firefox?

Jan 11, 2010

I keep reading on the web about how there is now a 64 bit plugin and even saw Eric state in the Slackware 64 thread that there was a plugin for x86_64...

Where does this plugin reside?

I'm seeing a ./lib/amd64/libjavaplugin_jni.so but that gives me nothing with "about:config"

I've got a 64 bit flash plugin.... Just need a java one and I'll be set as far as the web goes..

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Ubuntu :: Getting Java Plugin + Namoroka (Firefox 3.6) To Play

Jan 24, 2010

Thus far I have had no luck. I have installed Namoroka from the ppa repo and got flash working nicely but java is another matter. I followed instructions to install the jre manually but no matter what I do it will not display in FF's "aboutlugins". I have to ask if Namoroka is using the default folder: /home/username/.mozilla/plugins/? Because that is where I created the symlink to the java plugin.

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Ubuntu Installation :: Can't Get Java Plugin Functioning In Firefox 3.6.3

Apr 13, 2010

I've had a recent run of ubuntu snafus lately, most of which come back to accidentally getting firefox 3.6.4 (namaroka) installed. I've since rolled back and gotten flash working properly again, but Zotero isn't working. I figured out it was because java was being screwy and have been trying to repair it. I followed the instructions here first: [URL] and installed version 6 update 19. It came up as an add-on in firefox but didn't do anything. When I pull up a page with java on it the page just says it is disabled and I can click to install it. However, I then get was getting a box saying: "E: Unable to correct problems, you have held broken packages." I have since removed update 19, done a complete removal in synaptic, and reinstalled JRE and the plugin by going to a page in firefox and clicking the install button. Now it still isn't under my extensions list in firefox, it says it's disabled on pages with java, and when I click to install it says I already have it. I'm running Karmic koala by the way.

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Ubuntu :: Remove Firefox Without Removing Java Plugin?

Jun 5, 2010

I'm on 9.10 x64 gnome.I hate firefox and want to remove it because I use chrome,but when I try to remove it it removes the java plugin.And when I try to install the java plugin alone, it installs firefox. Why are these dependencies of each other? Is there any way that I can remove ff without removing java?

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Ubuntu :: Firefox 4.0 - How To Get Java 1.6.0_21 Plugin Working

Aug 28, 2010

I don't get the java plugin 1.6.0_21 working in Firefox 4.0b5pre. I deleted icedtea with the synaptic package manager and then I installed java 1.6.0_21 with chmod a+x and ./ .Everything goes well so far without any fault message. Then I created a symlink with ln -s ...but here I get no message. After I checked the java plugin in firefox and there was nothing I checked with java -version if java is there and there was no java installed.

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Ubuntu :: Java Installed, Firefox Can't Find Plugin?

Mar 2, 2011

downloaded the java .bin file from the website and made it excutable and ran in terminal... i got the 'done' message at the end of installation, so i restarted Firefox and verified if i had java. well, i got that message talking about missing plugins... i clicked it and click get missing plugins, It didn't find java on my computer!

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Ubuntu :: Get A Java Plugin Manually Installed In Firefox?

Jul 21, 2011

using Xubuntu 11.04

I don't like Firefox 4 and 5 so I uninstalled it and installed FF 3.6.19 manually in the /opt directory. It works really well. I wanted to add a java icedtea plugin to FF. But I can't use Synaptics. Synaptics does not see the FF 3.6.19 - it does not know it's there and will try an install FF5 if I use it to install that plugin - makes sense it would do that.

How do I get a java plugin installed considering how FF is implemented on my system?

I can download a deb installer for the plugin and use the archive manager to get manually get files out of it but what I've tried so far didn't work...

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Fedora :: Firefox Sun Java Plugin Not Working?

May 31, 2010

I have installed a fresh fedora 13. I was trying to install Sun Java so I just followed the instruction given here. everything went al-right and I am now able to open Java applications. The problem is that I can't get the Firefox Java plugin to work! I have tried many things but Firefox doesn't even show the plugin in the about: plugins page.My Firefox version is 3.6.3 and I am using java version 6 update 20.

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Fedora :: Firefox With Sun Java Plugin Crash In F13?

Jun 8, 2010

If you uninstall openJDK then download and install Sun jre-6u20-linux-i586, the n install plugin with

ln /opt/java/jre1.6.0_20/lib/i386/libnpjp2.so .
Restart Firefox and try to open java applet, firefox crashes.

The reason I'm not using openJDK because it is not working with Webex and thats critical for my work

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Fedora :: Firefox Java Plugin - Isn't Working

Jun 29, 2010

I downloaded java file from the official site and installed it successfully, but the plug isn't working yet! i can't figure out the missing step after the installation!

firefox: 3.6.4
plug in: jre-6u20-linux-i586-rpm

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Fedora X86/64bit :: Java JRE Plugin On Firefox For 14?

Feb 13, 2011

how to run a java application on a 64 bit Firefox install on Fedora, but I didn't find any simple and direct way to do it. So I'll post this here, hoping that people who search for this problem can easily find this really quick solution.

1-> on the terminal do the usual su -
2-> yum install jre
3.> make a link in /home/your_name/.mozilla/plugins/ folder to the file located at /usr/java/jre1.6.0_23/lib/amd64/libnpjp2.so
(just select the file, press ctrl+shift and drag it to the plugins folder)
4-> go to http://java.com/en/download/installed.jsp from firefox and test your install

Piece of cake, but it doesn't show up in search engines that easily when I look for: jre firefox 64 plugin fedora Granted that many tutorials mention the linking method, but most either tell you to install the binary/rpm from the java site or even installing the 32bit version for older fedoras... yum makes it so much easier.

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