3.3.8

Press the middle mouse button to autoscroll and, since the recent popup work, you got a flat grey square instead of the round double-arrow indicator. The autoscroll marker is itself a panel, so it was caught in the crossfire of FoxOne's popup styling.

Fixed

• The middle-click autoscroll indicator is round again, with its double-arrow glyph back. Firefox's .autoscroller is a panel, and toolkit global-shared.css builds its entire look out of the very --panel-* tokens FoxOne overrides for every popup: --panel-border-radius: 100% draws the circle, and the double-arrow icon is baked into the --panel-background-color value itself. All three popup blocks – colours, square corners, and the Mica opt-out – hit every panel with !important, so they flattened the circle to a square and painted over the arrow. .autoscroller is now excluded from all three, next to #DateTimePickerPanel, and falls back to its native styling.