Extensions Highlight: Classic Tabs / Tab Position Options
When I close tabs I like to go back to the tab I was using previously. Here are two extensions that allow you to change both tab opening and closing behaviour:
I don't strongly prefer one over the other. Classic Tabs is more widely known but Tab Position Options lets you stop Pop-ups from opening an entirely new window, which is a major annoyance for some users.
I suggest you try them both and find the one that works best for you!