The transition from one new comment to another stopped working: Habrahabr bug or my personal glitches?

Question

Habr

This morning, I noticed with displeasure that in my browser (Firefox 19) that button with the number of new comments on a blog post on Habrahabr, which always served as a means of moving from one new comment to another, for some reason ceased to fulfill its function. To the first of the new comments, she unscrews, but does not remove the mark of novelty from it, and with further mouse clicks, she does not advance the page to subsequent new comments.
Tell me, did I stumble upon the Habrahabr bug, or does no one else see it, so should I consider this an effect of my own software?
(Refreshing the page, even with the shift done, does not help. I checked.)

Answer 1

Same thing with me. Checked on two browsers.

Answer 2

And in the opera yesterday I noticed such a thing, yes.

Answer 3

Already fixed.

Answer 4

Chrome, makos. Plus.