These extensions will allow you to run older Java applets within your Firefox browser without using NPAPI. a. Visit the IE Tab extension page on Mozilla Add-ons site. b. Install the IE Tab extension, ...

Open Firefox Preferences and under the “General” tab click “Manage Add-ons…” Select “Plugins” and find Java (and/or Java Applet), click the Disable button Another option is to disable Java everywhere ...

“But there is a way to enable Java, Silverlight etc NPAPI plugins in Firefox 52 using an about:config setting. Add new Boolean string "plugin.load_flash_only" and set it to false. Then restart the ...

The steps are simple: click on the Firefox button (Tools menu in Windows XP), click Add-ons, click on the Plugins panel, click on the Java (TM) Platform plugin, and click on the Disable button.

Firefox will begin blocking plugins like Microsoft Silverlight, Java, Adobe Reader, and all but the newest version of Flash in an attempt to make its browser faster and more secure. Users will be ...