hi, like with other modern browsers, java and other npapi plugins are not supported in firefox quantum. oracle is also sunsetting it's browser plugin.

https://blog.mozilla.org/futurereleases/2015/10/08/npapi-plugins-in-firefox/ https://support.mozilla.org/kb/npapi-plugins https://blogs.oracle.com/java-platform-group/moving-to-a-plugin-free-web

I wanted to run oracle forms in mozilla, so i need java plugins. Without java plugins. how do i make it run in Mozilla??? Is there any other way??

Maybe in Firefox 32bit below version 40 oracle forms could run...

Even 3 years ago it was difficult to run it.

As said in https://support.mozilla.org/en-US/kb/npapi-plugins you need the 32-bit Firefox 52 ESR in order to use other NPAPI Plugins like Java on Windows in Mozilla Firefox or Firefox for short.

You need the Java 8 as the NPAPI Plugin is no more in 9.

The old Firefox 52 ESR branch is coming to an end as 52.9.0 ESR out on June 26 will last major update for it as 60.2.0 ESR will be the only current ESR in August.