> I use the android navigation bar at bottom to jump to Home or switch apps or lock the phone. FF in light theme mode takes over that area with a white backgrou

> I use the android navigation bar at bottom to jump to Home or switch apps or lock the phone. FF in light theme mode takes over that area with a white background making it impossible to use white-on-white buttons This doesn't happen for me on Android 10, and I haven't seen such a mode on any screenshots, so it seems to be a bug. Neither the new nor the old version have options for ‘fully-full-screen’ display where the top and bottom bars would be hidden. However, Mozilla isn't known for speedy fixing of bugs—probably doubly so with its current troubles. So I wouldn't raise hopes up even if this behavior is reported in the tracker.