Lost my Favorite and Browser tabs.

I am new to STP. I got frisky and decided to move the Browser tab to center screen to have a bigger expanded view for loop choices. I then tried to move the tab back. It blipped off to .....who knows where. Being not too bright, I then moved the Favorite tab front and center. I moved it back where it came from, hit the pretty little red button, and it too went to places newbee me does not know. Restarted, cold booted, and chased the cats out of the room before I hung them in frustration.

Can someone help me save my sanity, and the cats too? I know it is simple, but my books do not tell me how. Apple help menu is clueless too.

Peter (with less hair)