Poor optimization and doesn't even remove the top bar so it's making things worse.

This extension has been one of my all-time favourite. Shout out to the author for making Firefox a better production utility.

valo

The best way I've found to manage Tabs in FF. Coupled with a little userChrome.css magic to hide the old tab bar, and the experience is magical. TY Piro, for making this extension. :-D

Удобное расширение, спасибо!

Very cool but a bit overrated. Options are messy and some don't even work (special actions on 'new tab').

Отличный аддон

Было бы отлично если бы он умел опционально скрывать дефолтную панель вкладок сверху.

Nice!