XtraFinder add Tabs and features to Mac Finder. For other Mac Finder plugins, see here.
Ranked in these QuestionsQuestion Ranking
Pro Old full-size color labels from OS X < 10.9
Pro Additional right-click options
Xtra Finder provides additional options when performing the right click.
Pro Adds useful toolbar items
XtraFinder provides useful options for toolbar such as: Launch as Root, New Terminal Here, New File..., and Select...
Pro Dual panel
Split the Finder window into to windows to achieve better file handling.
Pro Copy Path
Pro Custom hotkeys
Pro Can open a terminal in set position
XtraFinder can open up a terminal from the right-click menu in given path with "New Terminal Here".
Pro Colored icons in the Finder sidebar
Con Doesn't work on recent MacOS versions
Except if you do a dirty workarround...