Why doesn't Google support Java

Basic tips for troubleshooting Java problems

If you are having problems using Java, the tips below should help you troubleshoot them.

»Download and install Java
»Use Java
»Test Java
»Remove old versions of Java
»Find Java
»Always redirected to the java.com download page

Chrome browser version 42 and higher. Starting with Chrome version 42 (released in April 2015), Chrome has disabled the standard way browsers support plug-ins. additional Information



Download and install Java

Use the offline package of the installer (Windows only)

Often times, the offline package of the installer can run successfully when the online package has encountered a problem. The file of the offline package of the installation program is large. Downloading this package therefore takes longer than the online installation program.
»Download the Windows offline installer

Uninstall faulty Java installations

Remove previous bad installations of Java before attempting a fresh installation.
»Uninstall Java for Windows
»Uninstall Java for Mac

Temporarily turn off the firewall or antivirus clients

An active firewall or anti-virus software can prevent Java from being installed properly. Don't forget to turn your firewall or antivirus software back on after you've successfully installed Java.

Why do I get a corrupt file reported during the Java installation?

Most Windows XP users see this message. Running a Microsoft repair program and using an offline installer may fix the problem. For more information, see the Installshield FAQs.

You can test your Java installation as described in the Testing Java section below.


Use Java

After making sure that Java has been installed properly, see below to see if you can run a specific Java application.

After installing Java, restart your browser to activate the new version.

If you are still prompted to update Java after installing the latest version, try restarting your browser. Close all browser windows, then reopen any web page that requires Java. Starting a new browser session will in most cases activate the latest installed version of Java in your browser.
Note: If you are prompted for an update anyway, restart your system. Some systems require a reboot to register a newly installed Java plug-in.

Grant permission to run Java when prompted by the browser

Browsers will ask you for authorization to run the Java plug-in in the browser. The authorization prompts differ depending on the browser.
»Allow the Java plug-in in the browser

Check whether the Java plug-in is activated in the browser

Browsers can deactivate the Java plug-in or associated add-ons by default. You have to configure the browser so that the Java plug-in is activated.
»Activate the Java plug-in in the browser

Check whether Java is activated in the Java Control Panel

If Java is not activated in the Java Control Panel, you will not be able to run Java applications in any browser.
»Activate Java content in the browser with the Java Control Panel

Configure security settings

Make sure that the Java security level is not preventing the application from running. The default security level can limit the ability to run applications that put your computer at risk.
»Configure security level settings in the Java Control Panel

How can I run applications blocked by security settings?

The Exception List feature was introduced with the release of Java 7 Update 51. Adding an application URL to the exception list allows you to run Rich Internet Applications (RIAs) that would normally be blocked from the security scan.
»Configure the exception list

Why can't I print coupons and delivery labels?

Some Java applications have not yet been upgraded, so they do not yet meet the new Java security standards. As a result, these apps are blocked and printing is disabled. Let the website or application developer know about this problem.
»FAQ on printing problems

Delete the (temporary) Java cache files

Occasionally, a corrupted file in the Java cache can prevent an application from running. You can safely delete the temporary files that Java downloads because Java will download them again and make sure they are up to date.
»Clear the content of the Java cache

Check antivirus or firewall settings for Java

Users must use antivirus security applications and firewall settings to verify that there are areas to configure Java plug-ins and that trusted sites can be added.

Check proxy settings

Make sure that you are using the correct proxy settings, if required for your particular Internet configuration.
»Define proxy settings in the Java Control Panel

Uninstall standalone installations of JavaFX in Firefox (Windows)

A conflict between Java 7u10 and higher and previous standalone installations of JavaFX could result in Firefox not recognizing the installed Java versions.
»See problems in Firefox


Test Java

Make sure Java is activated in your browser.

After the Java installation is complete, you can check whether Java is activated in your browser. Java may have been disabled or its execution blocked in your browser. How you grant permission to run Java differs depending on the browser you are using.
»Check whether Java works in your browser.


Uninstall old versions of Java

Remove any old versions of Java to reduce security risks.

Keeping old and unsupported versions of Java on the system poses a serious security risk. Uninstalling older versions of Java ensures that Java applications run with the latest security and performance improvements.
»Remove older Java versions


 

Find Java

Options with which installed Java versions can be found

»Use the Verify applet (recommended)
»If you can't run applets, use the manual method to find the Java version (Windows and Mac)


Always redirected to java.com when visiting a page with a Java application.

Install the latest version of Java

The continual redirect to java.com was a known issue with Java version 7u25 and earlier. This problem was corrected in the Java 7u40 release. To avoid being redirected to java.com, download the latest version of Java from http://java.com