Hi, the last version to support NPAPI plugins other than Flash will be Firefox 52.9.0esr. It's going to be released on June 26 and will receive security fixes throughout August. Afterwards that technology will be finally deprecated in Firefox as announced years in advance: https://blog.mozilla.org/futurereleases/2015/10/08/npapi-plugins-in-firefox/

The Firefox 60.0 Release will be the base for the current ESR in May so only the Flash Player Plugin will be allowed to run then. The old 52 ESR branch as said is coming to an end.

Oracle themselves is pretty much depreciating their vulnerable Java plugin as Java 9 does not come with it.

I am hearing mass confusion on this end. My question was clear, or so I thought. James, your answer gives no date at all, but suggests Mozilla might be on schedule to end this on May 8th. Philipp's response suggests that Java npapi plugin support will end some time after June 26. Meanwhile the link Philipp sent with his response suggests a 2016 deadline that has already passed. While the June 2018 timeline is good news for me, my payroll vendor, and P.O.S. vendor, I really need to know when Mozilla is drawing the line in the sand on Java npapi plugins. I just need a date to give to my vendors. Is this date not set in stone already?

the line in the sand is end of august 2018 - that's when the 52esr release reaches the end of its life.

Thank you. Have a great day!

skirsch01 said

I am hearing mass confusion on this end. My question was clear, or so I thought. James, your answer gives no date at all, but suggests Mozilla might be on schedule to end this on May 8th. Philipp's response suggests that Java npapi plugin support will end some time after June 26. Meanwhile the link Philipp sent with his response suggests a 2016 deadline that has already passed. While the June 2018 timeline is good news for me, my payroll vendor, and P.O.S. vendor, I really need to know when Mozilla is drawing the line in the sand on Java npapi plugins. I just need a date to give to my vendors. Is this date not set in stone already?

Ok to be clearer.

https://wiki.mozilla.org/Release_Management/Calendar

Firefox 52.8.0 ESR and 60.0 ESR will be out on May 9th.

Firefox 52.9.0 ESR and 60.1.0 ESR will be out on June 26.

Firefox 60.2.0 ESR will be out on August 21. At this point Firefox 52 ESR branch will be EOL unless Mozilla decides to extended it again as it was originally going to end at 52.8.0esr.