Prevent Duplicate Tabs, a Google Chrome App. that tells everything from its name and that all what it does. The extension closes old tabs and also prevents you from opening new ones. Tab addiction is something that most web surfers have and many a times people don’t even remember what that have opened thirteen tabs back.
Prevent Duplicate Tabs supports three modes: you can keep new tab, you can keep old tab, and off. This way you easily switch between modes with one click or pick a setting, hide the button, and forget about the duplicates.