Drag row below last row failed in Firefox

It is not possible to drag a grid row below the last row in a grid with drag’n’drop in Firefox (Windows and MacOS). Noticed in our own Vaadin 24.3.5 app, but also the examples in the official documentation shows this strange behaviour https://vaadin.com/docs/latest/components/grid#row-reordering
If you try to drag any row below the last row, this attempt usually fails in Firefox, but not always: sometimes it works, but I have not been able to find out under which circumstances it works and when it does not. If the blue line flickers, it wouldn’t work, if the blue line shown solid, it will be successfull. With Google Chrome it always works. How can I achieve, that drag below the last row is successfully also in Firefox.

how can I…

Opening a ticket on GitHub would be my first bet… I don’t think there is anything else you can do except swapping browser

i almost fear that too. but i wanted to ask here first before i open an issue…