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Java plugin no longer supported in firefox 52. Is there any other way to run java applets in firefox

rated 0 times [ 2] [ 0] / answers: 1 / hits: 38388 / 2 Years ago, sun, october 16, 2022, 3:44:43

Recently I installed Oracle Java. It worked fine, But with the recent upgrade with Firefox throws an error.

I checked it here, which says:

Starting with Firefox Version 52 (released in March 2017), Firefox has
limited support for plug-ins, and therefore will not run Java. Use the
Java Control Panel to find the installed Java version.

I double checked the symbolic link also. It is configured properly

$ java -version

java version "1.8.0_121"

Java(TM) SE Runtime Environment (build 1.8.0_121-b13)

How can I run java applets in firefox?

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answered 2 Years ago ravturtl · Accepted Answer

Further commentary from Oracle is linked by the page you quoted, Firefox has taken the explicit decision to stop providing the NPAPI to plugins aside from Flash, essentially meaning, Firefox will not listen to anything Java might try to say.

Firefox 52 and above

Beginning with Firefox 52 (released March 2017), plug-in support is
limited to Adobe Flash, and drops support for NPAPI, impacting plugins
for Java, Silverlight, and other similar NPAPI based plugins.

If you have problems accessing Java applications using Firefox, Oracle
recommends using Internet Explorer (Windows) or Safari (Mac OS X)
instead.

Your solution then would normally have to be to run Java applets in a browser that allows Java plugins. Try Chromium or QupZilla for example.

If you really want Java in Firefox, you can install Firefox ESR instead. Note that this one will not track regular Firefox version anymore, so your Firefox will grow old feature-wise, but still keep receiving security updates.