Firefox in full wayland plasma session.

Firefox 73.0 does not work in a full wayland plasma session. More precisely, it launches but does not update the interface when working with it, but if you minimize and then expand the browser window, then the changes made in the interface will be drawn (for example, we will see a new open tab). The browser gives the following error to the console - attempting load of How to fix this problem, I remember on Gnome 3 firefox worked fine under wayland?

I use the following workaround:

GDK_BACKEND=x11 firefox

Not a solution, but it works for me.