How to get Firefox 43.0 x64 on windows 7 Pro to run java?
Firefox 43.0 x64 edition; Oracle JRE, Java jre-8u66-windows-x64.
Visit webpages with java, and *NO* indication of java present.
about:plugins does *NOT* list Java anywhere.
Is Java no longer supported with firefox?
Wšě wotmołwy (3)
I am sorry, but you cannot. Only two plugins supported in the 64-bit Firefox build for Windows are Adobe Flash and Microsoft Silverlight. Java is supported only in 32-bit Firefox for Windows.
Java Downloads for All Operating Systems
Make sure your Java (Not JavaScript) is up to date
Verify Java and Find Out-of-Date Versions {web link}
Version 8 Update 66 Release date November 16, 2015
edit: fixed version and release date as it was previous.
Wot James změnjeny
As was stated in first reply the Win64 Plugin only has Flash Player and Silverlight white listed to run.
To use other Plugins on Windows, you will need 32-bit Firefox and 32-bit Plugins