Comment 12 for bug 50320

I did not try this workaround. But, I think the layout of kubuntu's "system-settings" is good. But it must definitely have an option to change file associations in it, especially as dolphin has become the default file manager.

Another option would be add the option in dolphin itself, just as konqueror had it. I have put up a feature request at http://bugs.kde.org/show_bug.cgi?id=151094

I requested interested users and developers to give your feedback there so that KDE team looks into it and fixes it upstream.