They sell bedsheets, with sort of a raunchy ad campaign. I had a adblocker but wound up uninstalling it when it became more of a hassle than it was worth.

The web is becoming very hostile to ad blockers. I use a VPN and I've noticed more and more sites just being obnoxious with their popups and even just crashing the site completely in a loop (looking at you EuroNews)

abp in firefox doesn't really remove them. I've seen and reported multiple scummy popup-like looking ads like tfn and saw it again for weeks...