You saved my life

Works for me, many thanks. How this isn't an option in default browser just boggles my mind.

Simple and easy to use. Great!

Does exactly what it says. Huge shout out to the author!!! Finally at least some Tab Mix Plus functionality is restored. Many thanks!!!

Thank you. Does exactly what I need it to do, and I appreciate it for all the same reasons that led to its creation.

非常好，简单好用，满足使用要求！其他类似的扩展总是有些BUG，这个没有发现问题！

Good!

Просто, гениально.

Great add-on, does what it claims to do!
One drawback I notice when used in conjunction with Firefox' "Restore tabs from previous session" option enabled. See https://github.com/czukowski/tab-control-extension/issues/1

Open right Close left タブを右隣に開いて閉めたら左に simple and great!!

Working properly on firefox 61

Does exactly what it says to be, in a perfect and smooth manner.
I had tried the extension 'Open tab next to current' but it wasn't as smooth (tab opening was putting new tab right to the current one, but was then transferring this new tab at first place in list of tabs.).

Thank you very much.

This is exactly the addon I wanted! I had tried all the other alternatives listed by the developer (as well as Tab Position Options) before, but none of them functioned perfectly the way this one does! Consistent behavior even with other new tab opening addons that I have, I love it! Thanks, czukowski!