Rated 3 out of 5 stars
I use this and Tab Control as a way to avoid the bloatware that is Tab Mix Plus.
However, I would much prefer if this addon had the option of just adding a single button to duplicate tab to the context menu, like in every other browser. This would save needing two clicks - I'm sure if you monitored usage people just duplicate the tab 99% of the time, and you are making this twice as complicated as it needs to be for GUI users by requiring two clicks to duplicate a tab. At least make this an option in the settings to simplify this addon for those who only need duplication of tab functionality.