For this, you would need to download an old version of java for 32-bit and then add it as a plugin. Java is no longer supported in Firefox versions and if you update your web browser, then Java would not run at all on the newer versions. There are many things that one should look out for to keep Java running on Firefox.

The end line would help you to evaluate the JavaScript expressions where you can enable the Java plug-in.

You would see display messages on the window pane along with the toolbar option.

Select the browser console in the web developer submenu.

Therefore, you need to download it and enable it later. Firefox does not offer Java plugin as an add-in. If this is not available, then you need to download it and install the same.

You should first check if Java is available in your system or not.

Just that you would need to deselect the above options to get the Java disabled in macOS. If you wish to disable Java on Firefox, then the steps would be the same. Your web browser for Firefox would start with Java and all the applications would work fine. For the new versions select the Ask to Activate or Always Activate button.

You would find an Enable radio button if on the older version of Firefox.

For Windows click on Java (TM) Platform plugin and for Mac OS Select Java Applet Plug-in.

Find Plugins in the Add-ons manager window.

Open the Tools option and click on Add-Ons.

If the problem persists then do as mentioned below. So, close all the open browser windows and reopen it. You need to restart your web browser before you could enable the Java language on your system.Follow the Different Methods to Enable Java in Firefox Browser So, you would have to enable it using the below steps. The reason could be that Java is not enabled on your system even after being installed. X.Org 1.0 or higher (1.The problem statement is that the programs do not run even after installing Java in the system.Firefox will not run at all without the following libraries or packages:.

Please note that GNU/Linux distributors may provide packages for your distribution which have different requirements.

Macintosh computer with an Intel x86 processor.

Pentium 4 or newer processor that supports SSE2.

Please note that while the 32-bit and 64-bit versions of Windows Vista and Windows 7 can be used to run Firefox 32, only 32-bit builds of Firefox 32 are supported at this time.

Enable java in firefox 32 bit