How to have multi-tab at one tab and group the tabs with it?
I would like to use multiple tab option or add-on if there is any, so that I can put selected tabs in one tab and create different tab groups with them. My Firefox is a r… (read more)
I would like to use multiple tab option or add-on if there is any, so that I can put selected tabs in one tab and create different tab groups with them. My Firefox is a real mess.
Firefox