@marienka @ivo

This is no longer an issue. Please mark this as a fixed bug.

Thanks all

Okay, I see what's going on. The problem is at your end.

Does the same in Microsoft Edge. It's because scrolling to the side brings up the cams.

Doesn't do it in Opera because you can't scroll sideways for cams.

It's a very intensive interface.

The latest beta of Firefox appears to have broken the rendering of the location forecast pop-up at the bottom of the screen. The grey bar is a slider to scroll the window left and right.

Tested in safe mode to be sure it's not a plug-in.

Not sure whether this is a sign of things to come in Firefox 60 or a bug on Mozilla's side.

See attached screenshot.