Superbar Won't Show Separate Tabs For Browsers When Hovering

Earlier today I was pinning some shortcuts to the superbar (wordpad, My Computer, Godmode) and now, for some reason, when I open Firefox, Chrome, or Opera, the superbar won't combine the tabs together, so instead of hovering over the icon for the browser and getting the different tabs to pop up, only the open tab pops up above the icon. But it works fine for Internet Explorer, open windows folders, and wordpad/notepad. Those icons pop up the multiple open documents when hovering. But the browsers won't show multiple tabs when hovering.I checked the options for the superbar and it is set to "always combine, hide labels".