Duplicate Tab Blocker

Rated 4 out of 5 stars

Sandr0 erabiltzaileak bidalia (api. 11, 2014) · permalink

Better be sure to safe or close all your open tabs if you install it the 1st time.
Because it may be (happend at my private-laptop, but not on the work-laptop) that this Add-On removes all Open Tabs.
Once installed it does exaclty what i want!