This page describes how to install and register the Java plugin.
Java plug-in does not work in Firefox after installing Java. This article applies to: Browser(s) Firefox; Java version(s): 7.0, 8.0. Firefox limits NPAPI support.
This page has these topics:
See 'JDK 8 and JRE 8 Installation Start Here' for general information about installing JDK 8 and JRE 8.
Plugin Installation
When you install the Java platform, the Java plugin file is included as part of that install. If you want to use Java within Firefox, you need to manually create a symbolic link from the plugin file in the release to one of the locations that Firefox expects. To make the plugin available to all users, create the link inside of the Firefox application's directory, in the
plugins
subdirectory. Alternatively, you can create the symbolic link in your home directory, in ~/.mozilla/plugins
. In the remainder of this document, the text, 'Firefox plugins directory', implies either of these locations.Note: For Firefox version 21 and higher, you must create the symbolic link in your home directory, ~/.mozilla/plugins . Beginning with Firefox version 21, creating the symbolic link in the plugins subdirectory of the Firefox application's directory is not supported. |
This release provides the Next-Generation Java plugin. If you have been using the classic plugin, see 'Notes' for further information.
The location of the plugin file for Linux varies according to the processor architecture of the underlying platform, as shown in the following table.
Processor Architecture | Location of File |
---|---|
32-bit | jre1.8.0 version /lib/i386/libnpjp2.so |
64-bit | jre1.8.0_ version /lib/amd64/libnpjp2.so |
If you are using a 32-bit Firefox, you should use the 32-bit Java Plugin (from the
lib/i386
directory). To determine which version of Firefox you are running, launch the application, and select the menu item Help > About Mozilla Firefox. At the bottom of the window is a version string line that contains either 'Linux i686' (32-bit) or 'Linux x86_64' (64-bit).To install the Java Plugin follow these steps:
- Exit Firefox.
- Uninstall any previous installations of Java Plugin.Only one Java Plugin can be used at a time. When you want to use a different plugin, or version of a plugin, remove the symbolic links to any other versions and create a fresh symbolic link to the new one.Remove the symbolic links (or move them to another directory) to
javaplugin-oji.so
andlibnpjp2.so
from the Firefoxplugins
directory. - Create a symbolic link to the Java Plugin in the Firefox
plugins
directory.For a 32-bit plugin:For a 64-bit plugin: - Start the Firefox Browser.
- Type
about:plugins
in the Location bar to confirm that the Java Plugin is loaded. Alternatively, click the Tools menu to confirm that Java Console is there.
Notes
The classic plugin file was located here:
This file should no longer be used and all symbolic links to it should be removed.
See
http://www.oracle.com/technetwork/java/javase/certconfig-2095354.html#browsers
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