Just a minor bug, sometime when browsing especially when clicking on any Youtube channel a blank popup from adtrustmedia will randomly appear on a new tab.
I can’t remember the direct link because it is long. But the domain is originated from adtrustmedia.com.
I’m using Firefox 26 and the latest Pale Moon browser with the most recent Privdog 1.8.17. I think this bug only appear on Gecko / Firefox-based browser. Never happens on my Yandex browser (webkit).