I really can't find a combination of packages to install to have my browser Firefox to open jnlp. I installed different versions of java, also I installed Liberica full JDK, beside this the needed icedtea-web and I still have problem when trying to access my page using applets.
When I access the page it is automatically linked to IcedTea-web but when continue to open somewhere it stuck and I have the message below :
net.sourceforge.jnlp.LaunchException: Fatal: Initialization Error: Could not initialize application. The application has not be
en initialized, for more information execute javaws from the command line.