After browsing a commercial site www.kohls.com I suddenly got some "launch icons" in my bottom bar towards the right side. They automatically go to pages on Kohl's website. I cannot get rid of them - tried everything, including even uninstalling and reinstalling Firefox. This has never happened on other websites. Could Kohl's website be installing malware? In any case, how do I get rid of them, short of a complete Ubuntu reinstall? I am using Ubuntu 12.04, correctly updated, but with Gnome GUI instead of "unity" which I do not like at all.
Screenshot at: https://i.stack.imgur.com/OyltJ.png