[Techhexium]

If you refresh in such a way that the browser gets the data for the webpage instead of the browser's cache (Ctrl + F5 instead of just F5), the "go to first unread" button disappears. I'm using Firefox, and all browsers will refresh pages like that when you press Ctrl+ F5 so I don't think it's a bug. In any browser, it loads some data from the cache to speed up the refresh process.