Comment 1 for bug 158567

Thank you for taking the time to report this issue and helping to make Ubuntu better. Thanks for submitting this issue.

Did you install the package sun-java6-plugin or better kubuntu-restricted-extras? You need to enable the restricted repositories (and multiverse) for this. See also https://help.ubuntu.com/community/Java and https://help.ubuntu.com/community/Java#head-c0ade16437f7da9136027572a9481cd65757bd41.

Examining the information you have given us, this does not appear to be a bug report and subsequently we are closing it and converting it to a question in the support tracker. We appreciate the difficulties you are facing, but it would make more sense to raise problems you are having in the support tracker at https://answers.launchpad.net/ubuntu if you are uncertain if they are bugs. For help on reporting bugs, see https://help.ubuntu.com/community/ReportingBugs .

I can run the urls below with Kubuntu and Firefox without any problems.