Conex ( https://addons.mozilla.org/en-US/firefox/addon/conex/ ) works with horiz...

Conex ( https://addons.mozilla.org/en-US/firefox/addon/conex/ ) works with horizontal tabs strip but has the advantage that it can hide all tabs that don't belong to the current container.

Now, if only Firefox would improve the speed of hiding and showing tabs used for container switch.................

(btw, does anyone know of a bug report related to this improvement???)