Some time ago I’ve noticed that the tabbar in gedit would always be there, even when there’s only one file open in a window, and the “remove tabbar” plug-in won’t help either. Until I stumbled upon this post mentioning the all fameous LaTeX plug-in to be responsible for that. And in fact, that was it! For some reason, the LaTeX plug-in will make the tabbar always show up. Looking into this now, probably just a small change to that plug-in… or maybe it has even been fixed in the latest code.
