In such cases, you can access the 32-bit Java Control Panel for Java 7 by running C:\Program Files (x86)\Java\jre7\bin\(press "Windows key R" to open the Run box).
Alternately, you can update Java using the manual update method (see below) by downloading the latest update.
With recent Java versions, you'll also need to confirm that you want to run Java, if prompted.
  If you prefer an offline installation, go to the Java Downloads page (see above for links) and save the Windows Offline installer to any convenient location, close your browser and run the installer.
 Starting with Java 6 Update 10, Java updates patch the current version by default instead of adding an additional version.
On Mac OS X 10.7.3 (Lion) and above, Java 7 is available here or from this download page. (If you are looking for Java 6, see the Java 6 FAQ page).
You can also download an offline installer using the "JRE" download link on Oracle's Java SE Downloads. Even if you have a 64-bit operating system, you need the 32-bit (x86) Java download for 32-bit browsers.
Many web pages use Java applets for interactive content such as online games. Starting in Firefox 3.6, Java will not work unless you are using the Next-Generation Java Plug-In (included in Java 6 Update 10 and above).
To run these Java applets, you need the "Java Runtime Environment" ("JRE") installed and enabled.  Important: Mozilla adds outdated or insecure plugins to its Add-ons Blocklist as a security measure.
Mozilla applications are regularly updated for security and stability; however, Mozilla does not provide updates for plug-ins.
Plug-ins can cause crashes and hangs and may contain security vulnerabilities.
This utility allows browsers other than Apple's Safari to use the most recent versions of Java on Mac OS X.