Learn how to enable the Java Runtime Environment (JRE) through your Web browser.

If you try to run a Java applet using a Java plug-in version that is identified as vulnerable, Firefox will prevent the applet from automatically loading and alert you that the plug-in is vulnerable. If an update …

The Java content in the browser is disabled in the Java Control Panel. If Java is already installed but applets do not work, you may need to check and see if Java is enabled.,

Once the Java installation has completed, you can verify that Java is working in your browser. It is possible that Java has been disabled or blocked from running in your browser.

Learn how to find which Java version (s) are installed without running an applet on Windows or Mac

UAC (User Account Control) dialogs As removing Java from your computer requires administrative permissions, when the application is started, Windows might trigger a warning requesting permission …

The Java Plugin for web browsers relies on the cross-platform plugin architecture NPAPI, which had been supported by all major web browsers for over a decade. Google's Chrome version 45 and …

Starting Microsoft Edge version 77 or later, the user can configure the browser to run in IE mode thus enabling Java Plug-in to work. For consumer at home, follow instructions from the Microsoft support …

To test that Java is installed and working properly on your computer, run this test applet. NOTE: You may need to restart (close and re-open) your browser to enable the Java installation in your browser.

How do I enable Java in a web browser on Ubuntu Linux? This article applies to: Platform (s): Ubuntu Linux Browser (s) Chrome, Firefox Java version (s): 7.0, 8.0