Here is information about making Java work properly for all sites.
Friday, February 21, 2014
Why doesn't Java work for me?
The current challenges with Java are a result of increased security to prevent malicious activity through Java applets and scripts. Added to this challenge is the fact that Java installations come in two forms: a browser plugin (sufficient for most content) and an OS-based installation (required to run downloaded .jar or .jnlp files and for the system Control Panel.)