Sidebery

Name: Sidebery
Rating: 4.6887 (1060 reviews)
Author: mbnuqw

By: mbnuqw

Vertical tabs tree and bookmarks in sidebar with advanced containers configuration, grouping and many other features.

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Features & Capabilities

Sidebery enhances your browser experience by organizing tabs, bookmarks, and history into customizable vertical panels. It features a tree-structured tabs list, grouping capabilities, colorization, sorting, and automatic tab unloading to keep your workspace efficient. Bookmarks can be viewed and managed in tree or chronological order with easy operations like open, edit, and delete.

Advanced container configurations let you bind tabs to specific contexts with options for proxies and user agents. Customize context menus, mouse and keyboard controls, and styles for a tailored browsing environment. Sidebery prioritizes privacy, storing data locally and allowing optional sync across devices. It supports snapshots for session backup and integrates smoothly, avoiding conflicts with other tab management extensions. Explore more on their GitHub page.

User Growth & Download Statistics

Add-on Privacy & Security

By:

mbnuqw

Daily users:

54,550 -72

Rating:

4.69

(1,060) 0.01

Version:

5.5.2 Last updated: 2026-04-23

Version code:

6222602

Creation date:

2018-09-23

Risk:

Permissions:

activeTab
tabs
contextualIdentities
cookies
storage
unlimitedStorage
sessions
menus
menus.overrideContext
search

Size:

574.44KB

Email:

ma*****@gmail.com

URLs:

Website

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-06-03

Compare stats and ranking:

Ranking

# 304 ▼ 2

Other rankings

#2 in Bookmarks

#13 in Tabs

#1 in configure keyword 25

#1 in sidebar keyword 26

#4 in solana keyword 47

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For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.

Developed by:

mbnuqw

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/sidebery/

Email:

ma*****@gmail.com

Website:

https://github.com/mbnuqw/sidebery

Permission Change History

2025-11-10: Version 5.3.3 → 5.4.0

Add Optional permissions: clipboardRead

2025-02-03: Version 5.2.0 → 5.3.1

Add Permissions: identity

2023-09-22: Version 4.10.2 → 5.0.0

Add Permissions: activeTab unlimitedStorage theme

Remove Permissions: bookmarks

Add Optional permissions: bookmarks history downloads

User Reviews

Users consistently praise Sidebery for powerful tab grouping, nesting, and collapsing to reduce clutter. They also value memory savings from unloading tabs in collapsed groups, rich customization (colors by domain, indentation, placement), and automatic backups that preserve layouts. A recurring limitation is the desire for native multi-panel or multiple tab groups. Overall, Sidebery is viewed as a productivity booster and essential tab-management tool, with some feature gaps.

Pros

Excellent tab grouping and hierarchical organization with nesting and collapsible groups.
Memory-friendly design that unloads tabs in collapsed groups to reduce RAM usage.
Rich customization and visual cues, including color-by-domain coding, parent-child indentation, and flexible tab placement.
Automatic backups that preserve tab layouts and state.
Strong productivity boost and workflow improvement reported by many users.

Cons

Lack of native multi-panel/tab group support: a commonly requested feature to extend the current single-panel layout.

Recent reviews

It turned the entire structure—which I had spent so long building—into mush.

by Qu*****, 2026-06-01

Bad buggy with issues extension. Do not waste time on it. Whenever you select any 2 or more tabs the extensions randomly selects any other tabs not related to your selections. It's impossible to use. Very poor quality of work.

by Ji*****, 2026-05-31

Conflicts with vertical tabs.

by Fi*****, 2026-05-30

View all user reviews ›

Is Sidebery Safe?

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.

Sidebery 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.
Low ****** ***** ** ******* ****** ********** **** ** ** ******** ******* ** **** ***** *************

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.

Sidebery has earned a good reputation and can be trusted.

Risk likelihood analysis details

Medium This extension was updated in the past 3 months. New updates may not be stable or safe.
Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
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Good **** ********* ** ****** ** ********
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