In case you need to run java applet (java plugin) on firefox browser, you need to link the **libnpjp2.so **to the firefox plugins folder. If you have done that, but it not listed in the plugin list of the firefox. Try to following the below steps:

Check firefox version with command : firefox -v

Check fedora os information with command uname -a

issues: (duplicated from the beginning sentence)

Java plugin is not listed in plugins list (about:plugins) even you have link the libnpjp2.so to /usr/lib64/mozilla/plugins wtih the command

**Solutions: **start firefox with this command

[caption id=“attachment_126” align=“aligncenter” width=“863”]start firefox with profile selection start firefox with profile selection[/caption]

then, check the plugins again (in firefox url typed “about:plugins”)

[caption id=“attachment_127” align=“aligncenter” width=“861”]firefox java plugins firefox java plugins[/caption]