Simple Tab Groups Alternatives

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.

Open Source

Tree Style Tab is an all-in-one Firefox extension that provides ability in order to operate tabs as a tree.

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Tab Groups with Panorama View. Lets you easily Group and manage Tabs visually, with tab hiding.

This Firefox addon provides tab grouping features similar to the removed TabView/TabGroups/Panorama...

Sign in to two different accounts on the same site

A better way to work in the browser.

Manage your tabs and bookmarks in sidebar.

Next Generation Session, Windows, Tabs Manager and a TooManyTabs Solution That Really Works.

Vertical tab groups with tab searching.

Organize your tabs into workspaces.

Manage Your Browser Sessions

TabGroups married with Tab Containers and bookmark & history search

Provides tab groups / panorama functionality using the tab hide api. Manage tab groups in a compact, tiled groups view.