https://java.com/en/download/help/firefox_java.xmlFirefox 52 and above
Beginning with Firefox 52 (scheduled for March 2017 release), plug-in support is limited to Adobe Flash, and drops support for NPAPI, impacting plugins for Java, Silverlight, and other similar NPAPI based plugins.
Yes, and it's even more disappointing, mentioning that Netflix itself uses FreeBSD…Firefox 52 doesn't support Silverlight anymore, and pipelight is officially dead. How can a FreeBSD user watch Netflix videos now? I assume that despite the fact that Firefox 52 supposedly includes google widevine cdm, it is closed-sourced, and a FreeBSD user won't be able to install it and use it.
plugin.load_flash_only set to false. Also, ports have www/firefox-esr
IcedTea runs in standalone mode. I use it to manage my Cisco ASAis it a time to remove these IcedTed