Tree Style Tab

Name: Tree Style Tab
Rating: 4.5242 (2213 reviews)
Author: Piro (piro_or)

By: Piro (piro_or)

Show tabs like a tree.

Download

Install Compare

Tree Style Tab is a powerful browser extension that organizes your tabs as hierarchical trees. New tabs opened from a current tab are automatically grouped as children, enabling clear visual branching and a tidy tab bar. Easily collapse or expand branches to manage tab clutter, and rearrange tabs via drag and drop to suit your workflow.

This extension acts like a visual browsing history and groups related topics, enhancing navigation especially during research or multi-tab browsing. Useful features include toggling the sidebar with the F1 key, bookmarking integration, session management, and APIs for extension developers. Tree Style Tab supports various helper add-ons to extend functionality, making it a versatile tool for improving productivity and browser tab management.

Add-on Productivity Developer Tools Utilities

By:

Piro (piro_or)

Daily users:

189,046 288

Rating:

4.52

(2,213) 6 new ratings

Version:

4.2.5 Last updated: 2025-07-14

Version code:

5987074

Creation date:

2007-10-20

Risk:

Permissions:

activeTab
contextualIdentities
cookies
menus
menus.overrideContext
notifications
search
sessions
storage
tabGroups

Size:

1.14MB

URLs:

Website ,Privacy policy

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2025-07-20

Setup email notification for Tree Style Tab

Ranking

# 92 ▼ 1

Other rankings

#1 in Tabs

#6 in Appearance

#1 in style keyword 34

#1 in tab keyword 74

#2 in like keyword 32

Upgrade to see more rankings

User reviews

Users highly appreciate Tree Style Tab for its effective tab management, stability, and superior configurability compared to other vertical tab options. However, multiple users report issues with a new header that cannot be removed, absence of a search bar to quickly locate tabs, and occasional UI glitches when the sidebar is placed on the right, which disrupt the organization and navigation experience.

Pros

Highly useful and essential for managing many tabs efficiently.
More configurable and superior compared to Firefox's internal vertical tab view and other vertical tab extensions.
Allows organization of tabs in a tree structure for better workflow.
Stable and trustworthy as an extension consistently maintained by the developer.

Cons

Recent update introduced a persistent "Tree Style Tab" header in the sidebar that users want to remove.
Lacks a search feature to find tabs within many or collapsed groups, making navigation harder.
Some occasional glitches with formatting, especially when placed on the right side, such as misplaced close buttons and arrows affecting usability.

Recent reviews

by Ke*****, 2025-07-19

by Ро*****, 2025-07-15

Using this for couple years now and enjoying it much all the time. Extremely useful add-on, first one I install for myself on new computer. Kudos to Author :)

by Fi*****, 2025-07-14

View all user reviews ›

Extension safety

Risk impact

Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

Tree Style Tab requires a few sensitive permissions. Exercise caution before installing.

Risk impact analysis details

Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
Medium ******* ******* ************* ***** *** ** ******* *** **** ******* ****** ******** *******

Risk likelihood

Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

Tree Style Tab has earned a fairly good reputation and likely can be trusted.

Risk likelihood analysis details

High This extension was recently updated in the past month. New updates may not be stable or safe.
Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
Low **** ********* *** **** **** ****** ******* ********** **** ****** ** ** ****** *** *****
Good **** ********* *** **** **** *******

Upgrade to see full risk analysis details

Instantly check and monitor your browser extensions' risks and permissions with Extension Guard.