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how do i make applets work in Firefox. Newer versions of firefox does not have applet support, but I would like to know workaround for the same

  • 4 replies
  • 1 has this problem
  • Last reply by cor-el

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We have application/website that uses applets; however since firefox has stopped supporting java we are doomed. Any help or workaround so that applets can run would be really helpful

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What's your computer system and Firefox version?

What applets are you talking about?

This may be your problem,

Firefox v52+ disables all plugins except for Flash Why do Java, Silverlight, Adobe Acrobat and other plugins no longer work? {web link}

Install Older Version Of Firefox {web link} Be sure to read everything here.

If you still want to downgrade, look under; I still want to downgrade. Click the Directory of other versions and languages link. Look for the directory of the version that you want. But, remember that old versions may have security issues.

You should also check out Firefox; Extended Support Release {web link} ESR Notes System Requirements

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Most of your users probably still have Java installed on their computers. Oracle recommends migrating to the "Java Web Start" technology so that browsers can launch your applet (probably called something different now) using those external components.


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Forgot this link:

Migrating Java Applets to Java Web Start Applications

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It is actually support for applets that has been removed that causes the most problems.

A Java Web Start JNLP file is basically a XML file that the servers sends as application/x-java-jnlp-file and that is opened by the default application for this MIME type (Java Web Start). Java then handles everything on its own, but there is no longer embedding in a browser possible like a plugin offers.