zoom desktop app won't launch from ubuntu firefox

I recently installed zoom workplace 6.6.11 onto my desktop computer running kubuntu 24.04 LTS.  I installed from the ubuntu repositories and it seems to have installed correctly.  I can start the zoom app from my applications menu.  I can click on join a meeting and I get a place to enter a meeting ID.  I have no meeting to join at the moment, but so far so good.  It appears that zoom workplace works.

I wanted to do a test meeting, so I went to zoom.us/test.  I clicked on join and a window pops up:

Then click on Choose Application and

I tried the System Handler, the ZoomLauncher, and zoom, but nothing happens.

Initially the only option to open the zoommtg link was the System Handler, but I entered the firefox settings, then Applications, and I added zoom and ZoomLauncher at /opt/zoom/zoom and /opt/zoom/ZoomLauncher as options for zoommtg.

Is there a work around for this?  I don’t use zoom often.  I would be happy to paste a like into zoom workplace, if that would work.  

Zoom does work through firefox, but I can’t get the meeting link over to zoom workplace.