Is there a hotkey to switch between tabs in Gedit?

Gedit has this functionality natively, no need for a plugin. Try the following:

• Next tab CtrlAltPageDown
• Previous tab CtrlAltPageUp

here is a plugin here for gedit to Switch between tabs using Ctrl-Tab / Ctrl-Shift-Tab. Control Your Tabs There are also similar plugins on the same page. http://live.gnome.org/Gedit/Plugins