Wed. August 26 2009, 3:23:59 PM
I also recommend this - in particular to disable the evil new tab button. This links to the same extension for disabling the tear-off tabs behavior. It's pretty easy to be re-ordering tabs and accidentally drop it onto the wrong place causing a new window to open. One workaround is to open a second blank tab in the new window to show the tab bar (unless you have it set to always show), then drag the tab back to the original window, then close the new blank tab.