Make sure your Java (Not JavaScript) is up to date Verify Java and Find Out-of-Date Versions {web link}

Version 8 Update 91 Release date April 19, 2016 http://java.com/en/download/manual.jsp

Separate Security Issue: Update your Adobe Reader Version 2015.016.20039 Note: Other Software is offered in the download.

Use this link to check that your plugins are up-to-date. If any are listed as unknown or research, do not worry about them.

Java and JavaScript are different languages. To avoid confusion, see:

• http://kb.mozillazine.org/JavaScript_is_not_Java

It is possible that the correct Windows Registry keys are missing if Firefox doesn't detect the Java plugin. You can try to uninstall and reinstall Java, possibly as administrator to ensure the proper permissions. See also:

• http://kb.mozillazine.org/Java

I have uninstalled and re-installed the latest Java.

I have also ensured that Java is enabled in the browser through the Java control panel.

Still my browser doesn't detect Java - same problem persists.

Type about:addons<enter> in the address bar to open the Add-ons Manager. Hot key; <Control>(Mac=<Command>) <Shift> A)

On the left side of the page, select Plugins. Make sure the ones you want to use are set to Ask or Allow.

Go to the web page. Once the page is loading, mouse to the address bar and Left click the icon. Select Permissions. In the menu, Make sure the ones you want to use are set to Ask or Allow.

The browser setting in the Java control panel doesn't apply to current Firefox release.

Did you check the Windows Registry?

• http://kb.mozillazine.org/Java#Add_back_missing_registry_key

64 bit Windows:

• HKLM\Software\Wow6432Node\MozillaPlugins\@java.com/JavaPlugin,version=xx.xx.xx