Right-click context menu showing up when creating arrows on board

On the boards one can draw arrows and produce colored squares. All of it by using the right mouse-button. However, then the windows context-menu popups too. Very annoying. Do you guys have that problem too? How to overcome that annoyance?

Did anyone ever figure this out? I'm using Vivaldi browser.

For me it was some add-on probably, but I don't know which one because I removed all due to a re-install of firefox.

I had to disable my Enable Right-Click extension, which had been forcing the right-click menu to always appear

Samsies

For the records:

You can do this in Firefox version 117 by going to about:config in the address bar and changing dom.event.contextmenu.shift_suppresses_event to false

Source: https://support.mozilla.org/en-US/questions/1420135