Chrome

1. Type about:plugins in the address bar.
2. Look for "Java" and click on the Enable button (if the button says "Disable," Java is already enabled).

Firefox

1. Start Mozilla Firefox browser or restart it if it is already running.
2. At the top of the browser, select the Firefox button (or Tools menu if you have it), then Add-ons. The Add-ons Manager tab will open.
3. In the Add-ons Manager tab, select Plugins.
4. Click Java plugin to select it.
5. Click on the Enable button (if the button says "Disable," Java is already enabled).

Safari

1. Launch Safari browser.
2. Click on Safari and select Preferences.
3. Click on the Security tab.
4. Check (select) Enable Java check box.
5. Close Safari Preferences window.

Internet Explorer

1. Click Tools and then Internet Options.
2. Select the Security tab, and select the Custom Level button.
3. Scroll down to Scripting of Java applets.
4. Make sure the Enable radio button is checked.
5. Click OK to save your preference.