Tab controlling extension is an absolute must for Firefox users that do not like the default behavior. At the time of writing, this extension is the only one that works with Firefox 57. I works great apart from a few minor issues that I'm sure the author will fix soon.

Its add an important function after than Tab Mix Plus deactivated.
Its save my life when i close a tab, the focus switch back to the tab, where i opened the closed tab.
Its help to keep the actual tab sort.

Little fail, when i open a new tab, its opened in last default position, and in milisecunds this extension move it to my wanted position.
I add 5 star if this little failer is corrected.

Works pretty fine. I think we should have this functionality with native Firefox. Thanks!