16

I have Ubuntu 12.10 for x86-64 on my PC and I'm trying to run a .jnlp file. I've installed Java 7 and the Java plugin for Mozilla Firefox manually (because there is no .deb package for Java 7 for Ubuntu).

Whenever I double click a .jnlp file, Firefox is opened and it gives me the option of opening the file with Firefox or saving it. If I click save, it download the file I'm trying to run, and if I click open with Firefox web browser, it opens another tab and asks me again (in the new tab) to either open or save.

I used to run the exact same file on Debian, so what should I do to run this file on Ubuntu?

Improve this question
1
  • Go to (Firefox) Preferences --> Applications --> JNLP file --> Use other Now go to your Java 7 disrectory --> bin --> javaws This will open your jnlp file --------------- Note - You can use Icedtea for opening jnlp files.
    – Din
    Jun 29, 2014 at 13:17

5 Answers 5

Reset to default
18

First install the icedtea-8-plugin package (or later version) that include the java browser-plugin and the javaws webstart tool that can launch .jnlp files.

Use javaws to open the downloaded .jnlp file.

Improve this answer
3
  • To install icedtea-7-plugin type sudo apt-get install icedtea-7-plugin.
    – IronMan007
    Mar 3, 2016 at 2:52
  • 2
    icedtea-7-plugin is not found anymore. Now you should install icedtea-8-plugin
    – Bunyk
    Nov 1, 2016 at 17:00
  • 2
    apt-cache search "icedtea-.*-plugin" to find appropriate version.
    – Chester
    Mar 21, 2018 at 12:20
2

Have you tried verifying that java is working properly? You can use this link to see if it is. http://www.java.com/en/download/installed.jsp?detect=jre If not, You'll have to get it enabled properly. I'm still a bit of a Noob but I had that same problem. Regards

Improve this answer
0
1

For Ubuntu 19.10, use:

sudo apt install icedtea-netx
Improve this answer
1
0

In directory /usr/lib/firefox-addons/plugins

Create symbolic link 

ln -s /usr/share/javaclient/jre1.8.0_121/lib/amd64/libnpjp2.so

Go to (Firefox) Preferences --> Applications --> JNLP file --> Use other

Now go to your Java 8 directory --> bin --> javaws

This will open your jnlp file

Credit Din for the firefox preferences.

Improve this answer
0

Apart of installing the OpenJDK 8 JRE, you may need to set the proper JRE in the IcedTea-web control panel (there's an application icon in your desktop environment). It could default to OpenJDK 11, so you need to set it up from there, in jvm settings, and select a path for the 8 version.

Improve this answer

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .