How to duplicate/clone tabs?

[Twilightssuperb]

No hotkey is available?

No tab context menu item?

[ccfs]

Click the + button on tab bar; or
Go to address bar and press Ctrl+Enter.

[LoganAC34]

I made a right click option with these settings. I also added the same settings under 'mouse' addon to be able to middle click a tab to duplicate it (although, in the last month or two i had to double middle mouse click to get it to work).