In the drop down next to the website, choose the option “Run in Unsafe Mode“.

Select the website you would like to trust.

You will see the list of websites you have visited that use the Java web plug-in.

Click the “Security” tab, then click the “Manage Website Settings…” button.

To trust an applet on a website, follow the steps below: To avoid this message, the website that is running the applet must be trusted. When attempting to save a file to the OSX filesystem if the appropriate changes have not been made you receive an error message reading “Operation not permitted”. Click Done, then close the Safari Preferences window.

Click on the Java item, select an option (Ask, Allow or Allow Always) from the pulldown list When visiting other websites.Select Allow Plug-ins, then click on Manage Website Settings.Safari's configuration must be changed to permit websites to run Java applets, and secondly to allow Java to interact with the file system (eg, to save a redacted document).

Install java plugin for safari