The Forms functionality on Oracle E-Business Suite is an integral part of an organization’s ERP Solution. In situations where Forms need to be accessed from a machine running Oracle Linux 6, the default browser Konqueror does not support it.
Through the course of this blog, I will attempt to resolve this issue by using the Firefox browser.

Detection

A current release of the Firefox browser (version 58) has dropped NPAPI support which disables Forms to detect the JRE version installed on the machine.
Firefox Extended Support Release continues to offer plug-in support. End-users who need to use Forms-based content in EBS must run the Firefox Extended Support Release.
The latest version of Firefox Extended Support Release (version 52) needs the GTK 3 library which is not supported on Oracle Linux 6 (by default) to circumvent this, Firefox Extended Support Release version 49 can be installed (which uses GTK library 2).
For all Linux distributions, a tarball is offered as a download link which can be found on the official Mozilla website.

Solution

Extract the tarball into the ~ directory of the root user.
Once it has been extracted, launch Firefox by entering
./firefox

The next step is to enable the libnpjp2.so plugin that allows EBS Forms to use JRE from the browser.
The Forms functionality also needs JDK version 1.8.0_102 (or above)
Get the required JDK version by downloading the rpm package from the Oracle Archives Page
Once the JDK is in place, navigate to the directory
/usr/java/jdk1.8.0_120/jre/lib/amd64/libnpjp2.so (FOR 64 Bit Version)
And ensure that the libnpjp2.so file exists in that location.

Create a Symbolic Link

Create symbolic links in 3 directories

cd /usr/lib64/mozilla/plugins
cd /usr/lib64/mozilla/plugins-wrapped
cd /etc/skel/.mozilla/plugins

by using the command

ln -s /usr/java/jdk1.8.0_102/jre/lib/amd64/libnpjp2.so
while in each of the directory

Bounce Firefox to view changes when about: plugins is entered in the address bar

Java(TM) Plug-in 1.8.0_102
Filename: libnpjp2.so The next generation Java plug-in for Mozilla browsers.

Configuring Java to allow self-signed certificates

When EBS Forms is being used in a development environment, it is essential to configure Java to accept self-signed certificates.
Due to the default security settings, Java blocks requests from domains that have self-signed certificates.

To allow a local domain to access Java, a Site Exception can be added, to do so, Java Control Panel needs to be started.
To start the control center, navigate to the /bin folder of the installed JRE version; in case of a default install it would be :

/usr/java/jre1.8.0_102/bin

And launch the Control Panel by issuing the

./ControlPanel

command.

Click on the Add an Exception button at the bottom and the local domain on which the EBS application is running.
Save changes and bounce the server to notice the effects.