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how to addon java in firefox in windows 11

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I need to use legacy application (java applet) in firefox. it is throwing error as java disabled. pls provide suggestion to rectify this issue.

I need to use legacy application (java applet) in firefox. it is throwing error as java disabled. pls provide suggestion to rectify this issue.

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Java applets are no longer supported

Support for the Java plugin and the Java applet in a browser window is dropped in Firefox 52 release, so you can no longer embed Java in a web page. Websites need to use Java Web Start (i.e. send a special XML file as application/x-java-jnlp-file) to launch a Java application in an external standalone window and can no longer use an applet to open a Java application embedded in a web page.

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You might be able to use Internet Explorer 11 if that still comes with Windows 11.