In Mozilla (Seamonkey build...) I can see without toil following videos: http://france2.fr/jt/20h

In Konqueror, the "waiting wheel" from flashplugin starts also (= flash and konqueror can be connected, flashplugin is found) but the video never start really.

In the past, the old Konqueror did use sometimes an extra package to be installed in case of use of konqueror to complete the installation and after that, the videos did also start without difficulty.

How to check is my installation is really complete as Kubuntu64 17.04, middle of December 2016, does not install Konqueror, not an other KDE browser, but that uggly Firefox not really being a KDE application?

Kind regards