1. From the Tools menu, click Internet Options.
2. From the Security tab, click Custom Level.
3. In the Security Settings dialog box, scroll to Scripting. At Active scripting, click to select Enable. Navigate to Scripting of Java applets, and then click to select Enable.
4. Click OK.
Note: Your browser stores many of its settings. The best way to ensure changes to core function settings take effect is to close all browser windows completely before relaunching.
1. Go to the Firefox menu
2. Select Options
3. Select the Content tab
5. Click OK to close the Options window