firefox: Dragging tabs between two firejailed profiles creates duplicate in separate window

[rieje]

Dragging tabs between two firejail'd profiles creates duplicate in separate window. Anyone have this issue? For example, I drag tabs from profileA to profileB to move them. It gets moved but a new window gets created for profileA containing these tabs as if I dragged the tabs outside of the Firefox window but not onto another Firefox window and that results in tabs being moved into a separate window for the same profileA.

It seems strange that the other firejail'd profile can accept the tabs but then the behavior above also happens where I need to close profileA's second window containing these tabs that were moved to profileB. Anyone know what's going on or if there's a workaround?