Facebook Ticker is a nice feature to get real time updates about your friends.
At the same time, this has been heavily criticized since the day it was introduced for so many reasons.
Few may like it few may not. If you want to hide Facebook ticker, without installing any browser extension here is a tip.
Just click on the top right of the ticker pane, Hide Ticker, to hide. This will not close the ticker, it just hides the ticker.
Click Show Ticker the updates when you think you need.