If you have Java installed, you should see a “disable” link underneath its listing. Firefox: Click Tools, Add-ons, and disable the Java plugin (s).

Learn how to uninstall or disable Java on your Windows computer and how to disable Java plugin in Chrome, Firefox, and Opera browser.

Mozilla has blacklisted unpatched versions of the Java plug-in from Firefox on Windows in order to protect its users from attacks that exploit known vulnerabilities in those versions.

Mozilla on Friday announced it has added Java 7 Update 9, Java 7 Update 10, Java 6 Update 37, and Java 6 Update 38 to its Firefox add-on block list, following yesterday’s news of a new ...