Sidebery
Tree Style Tab
OneTab
Firefox Multi-account Containers
Session Buddy
Tabs Outliner
Workona
Session Box
Duplicate Tabs Closer
Tabs Outliner
Tree Style Tab
Tab Utilities
Session Buddy
OneTab
Open Tabs Next to Current
Session Box
SideberyTree Style Tab - Tree Style Tab is an all-in-one Firefox extension that provides ability in order to operate tabs as a tree.
Tabs Outliner - Next Generation Session, Windows, Tabs Manager and a TooManyTabs Solution That Really Works.
OneTab - Whenever you find yourself with too many tabs, click the OneTab icon to convert all of your tabs into a list. When you need to access the tabs again, you can either restore them individually or all at once.
Firefox Multi-account Containers - Sign in to two different accounts on the same site
Tab Utilities - Tab Utilities is an ultimate tab solution for all kind of users who want to manage their tab, create multiple session and search for new tabs, etc.
Session Buddy - Manage Your Browser Sessions
