The news-feed, a constantly updating, “feed” of stories from pages or people you’ve subscribed to, or those who are part of your friend list.
The Mobile App had this notifier feature that would inform you of any recent activity, new stories, that have to be displayed on the news-feed.
The “New Stories” notifier from ‘Facebook for Android’
Now Facebook brings the same feature to its Web version, though things work a li’l differently here, yet I assure you, it does work, infact, better. So, this new feature is nicely integrated into the new “bar” introduced along with the graph search, and whenever there’s some recent activity (that’s too noble to be displayed in the ticker and thus is included in the news feed), It’ll display a small counter next to the Home button/link on the top-left part of the bar.
The notifier from the ‘web version’ of Facebook. See the? yeah thats the ‘counter.’