Ask HN: Bias in Google Chrome?

For the last couple or so years, my number 1 link on a new tab has been Facebook (my most visited site using Chrome). Number 2 is Youtube. (I use Firefox for HN and Reddit amongst others.) Suddenly, in the last couple of days, Facebook has slipped down my list and now no longer appears in the thumbnails on a new tab at all. It appears to have been replaced with Google Translate, which I rarely visit. Considering that I still visit Facebook more often than any other site when using Chrome, this seems to be a pretty blatant act of bias to leave it off my list of most used sites. Is anyone else experiencing anything similar? I know that Google are on a mission to increase usage of their own social media services, but this seems to be a bit of blatant abuse even by their standards. [edit: slight modification of title]