First off I'm not sure if this is being posted in the correct place or not, but here's my issue.

I am unable to change the default web browser to anything besides Firefox. I have tried using the settings menu for Google Chrome, Opera, Vivaldi, as well as KDE's own browser. I'm fairly sure its an issue with kubuntu itself but however I am unable determine if that is truely the case. Its not a huge issue just an annoyance. Any help resolving this issue would be greatly appreciated.