Information submitted through the support site is private but is not hosted within your secure CDD Vault. Please do not include sensitive intellectual property in your support requests.

Structure Editor on Mac shows "Inactive Plug-in".

MarvinSketch structure editor does not load. Error message says "Inactive Plug-in".

After you apply the latest software update on your Mac, Java applets will be disabled by default (and be disabled again if you do not use an applet for 35 days. See

The first time you open the structure editor, you will see something like the following:
Click on the arrow next to Inactive Plug-in and then on the enable button. You will have to quit the browser application and restart it to be able to use the structure editor.