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How to use Java applet in Linux

  • 6 odpowiedzi
  • 2 osoby mają ten problem
  • 1 wyświetlenie
  • Ostatnia odpowiedź od cor-el

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Hi all, am using Debian linux with Firefox 60.8.0esr (64-bit). I know the whole spiel about Firefox not supporting java applets any longer, but I have some old IoT devices that i need to get configured and they use a java applet for some portions of the configuration. I understand Firefox ESR 52 still supports java applets, and i've downloaded version 52.9.0esr and extracted it to its own location. Now i can start it without interferin with my v60 profile by running it like: "./firefox --no-remote --profile ." I had to go into options and turn off the automatic update because otherwise it updates it to v60. Then I downloaded jre-8u221-linux-x64.tar.gz and extracted that. Now the question is how do i get the plugin installed into the Firefox v52? thanks

Hi all, am using Debian linux with Firefox 60.8.0esr (64-bit). I know the whole spiel about Firefox not supporting java applets any longer, but I have some old IoT devices that i need to get configured and they use a java applet for some portions of the configuration. I understand Firefox ESR 52 still supports java applets, and i've downloaded version 52.9.0esr and extracted it to its own location. Now i can start it without interferin with my v60 profile by running it like: "./firefox --no-remote --profile ." I had to go into options and turn off the automatic update because otherwise it updates it to v60. Then I downloaded jre-8u221-linux-x64.tar.gz and extracted that. Now the question is how do i get the plugin installed into the Firefox v52? thanks

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Wybrane rozwiązanie

I wasn't able to make Firefox recognize the Java plugin via a symlink in "~/.mozilla/plugins" to the jre-8u221 and the jre-8u191, jre-8u144 works. I don't know why more recent Java plugin versions aren't detected.

In current Firefox releases you need a JNLP (Java Web Start) file to launch a java application.

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Wybrane rozwiązanie

I wasn't able to make Firefox recognize the Java plugin via a symlink in "~/.mozilla/plugins" to the jre-8u221 and the jre-8u191, jre-8u144 works. I don't know why more recent Java plugin versions aren't detected.

In current Firefox releases you need a JNLP (Java Web Start) file to launch a java application.

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Thanks! The 221 version worked OK for me for some reason. I put a link to jre1.8.0_221/lib/amd64/libnpjp2.so in ~/.mozilla/plugins and it showed right up in about:plugins Also had to run the jre1.8.0_221/bin/ControlPanel from the command line so I could add a security exception for the site, but after that the applet loaded right up and I was able to complete the device's configuration.

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i am trying to load the jre1.8.0_221 plugin to load in my Browser . i created a link to "/usr/local/jre1.8.0_221/lib/amd64/libnpjp2.so" in "~/.mozilla/plugins".

i installed java as system wide with root access , also while configuring the the path environment in "sudo nano /etc/profile" is edited as follows :

JAVA_HOME=/usr/local/jre1.8.0_221 PATH=$PATH:$HOME/bin:$JAVA_HOME/bin export JAVA_HOME export PATH

But the plugin is still not show in about:plugins in the Mozilla Browser and not working in the browser is also checked about:config .

what is the solution to this?

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You can't install and use the Java plugin in Firefox versions beyond Firefox 52.

Websites need to use Java Web Start (file extension .jnlp) to launch Java applications in a standalone window in current Firefox releases.

Why-do-Java-Silverlight-Adobe-Acrobat-and-other-plugins-no longer work.

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is the JNLP (Java Web Start) file to launch a java application to be found in ubuntu OS or in Firefox. Not sure how to approach this. I have Icedtea-Web running in Ubuntu but still can detect the jnlp file.

Any help will be appreciated.

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You should find a JNLP link on the web page just like you previously had a Java applet. A JNLP file is a special XML file send as type "application/x-java-jnlp-file".

This file has all parameters that are needed to start this Java application. See: