Software⏱️ 3 min read📅 2026-06-11

How to Fix: Java 7 update 25 applet error: "Error. Click for details"

Java applet error after updating Java 7 runtime to update 25 on OSX Mountain Lion.

Quick Answer: Try using an alternative browser or disabling the Java plugin in your browser settings.

📋 Table of Contents

  1. 💡 Why You Are Getting This Error
  2. 🔧 Proven Troubleshooting Steps
  3. 💡 Conclusion

Java 7 update 25 applet error: "Error. Click for details" is an issue affecting users who have updated to Java 7 runtime version 25 on OSX Mountain Lion, causing problems with loading applets in Firefox, Safari, and Chrome.

This error is particularly frustrating for home users as it prevents them from using certain applications that rely on applets, and the lack of a clear fix from Apple or Oracle makes it difficult to resolve.

💡 Why You Are Getting This Error

  • The primary reason for this issue lies in the changes made by Java 7 update 25. The new version introduces stricter security features that may be blocking older applets from running. This is likely due to the increased security measures implemented by Oracle to protect against vulnerabilities.
  • Another possible cause could be issues with the Java Plug-in installation or configuration on OSX Mountain Lion, which may not be compatible with newer versions of Java.

🔧 Proven Troubleshooting Steps

Update Java Plug-in to a lower version

  1. Step 1: Open the Java Control Panel and click on 'Advanced' tab.
  2. Step 2: Select the 'View' button next to 'Java Plug-in version' and select the previous version of the plug-in (e.g., 10.25.2.14) from the drop-down menu.
  3. Step 3: Click 'Apply' and then 'OK' to save the changes.

Check for compatibility issues with applets

  1. Step 1: Visit the website of the application that uses the applet and check if they have any updates or workarounds available.
  2. Step 2: Try running a different browser or version of Java to see if the issue persists.
  3. Step 3: Contact the support team of the application for assistance with resolving compatibility issues.

💡 Conclusion

To resolve the Java 7 update 25 applet error, try updating the Java Plug-in to a lower version or checking for compatibility issues with the applets. If these steps do not work, consider contacting the support team of the application for further assistance.

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