As of 2024 and reddit did update their website quite recently, addon no longer work in NEW(card) or Old(Compact) version. Just tested few days in a row.

Great Extension. Pretty useful.

Perfect extension. The internet needs more Column extensions. Scrolling is just a trick to put more ads without you noticing. Also we have widescreen monitors, not touchscreens.

Oh wow, this is pretty cool. This is a superior layout to the default Reddit layout.