Camera permissions (flatpak) issues

My camera is detected v4l2-ctl --list-devices

HD User Facing: HD User Facing (usb-0000:03:00.3-3):

but not working in firefox flatpak permission-set devices camera

Table Object App Permissions Data
devices camera no 0x00

and flatpak permission-set devices camera yes

does not work - the permission is still set to no