Duplicate Tab Blocker

评分4星，满分5星

由 Sandr0 发表于 April 11, 2014 · 永久链接

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!