Who should use Sidebery?

Sidebery is an open-source project built for firefox users who need advanced tab and bookmark organization.

Yes — Sidebery is open source under the Open Source license and free to use.

What platforms does Sidebery run on?

Sidebery runs on the web, embeddable surfaces, macOS, Windows, and Linux.

Is Sidebery still maintained?

Unverified. Sidebery has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.

What projects are similar to Sidebery?

Similar projects tracked by PulseGate include Tab in Side, Side View, and Notes on Sidebar.

Sidebery is developed by mbnuqw.

How long has Sidebery been around?

Sidebery first shipped in 2018.

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Sidebery

Name: Sidebery
Author: mbnuqw

github.comBrowser DevTools & extensions

Sidebery is an open-source Firefox extension that organizes tabs and bookmarks in a sidebar. It provides structured navigation for browser tabs, bookmark panels, and related browsing workflows for users managing many open pages.

Open SourceWebEmbeddablemacOSWindowsLinux

Visit github.com

Overview

5 features

Sidebery is a Browser DevTools & extensions project. It focuses on managing large collections of Firefox tabs and bookmarks without leaving the browser sidebar. Sidebery is an open-source project aimed at firefox users who need advanced tab and bookmark organization. Sidebery is open source under the Open Source license. It ships for the web, embeddable surfaces, macOS, Windows, and Linux.

mbnuqw builds and maintains Sidebery, and it first shipped in 2018. Among its 5 catalogued features are sidebar tabs, bookmark panels, and tab organization.

Summary written by a language model from the project’s public pages.

Sidebar tabs
Bookmark panels
Tab organization
Multiple panels
Tree-style tabs

Built with & integrations

Runs on

BrowserEmbeddablemacOSWindowsLinux

Trust & compliance

License

Open Source

Verified signals

HTTPSOpen SourceFree tierStore-verified publisher

Indexing history

What PulseGate has recorded for this listing

Indexed7 Sept · 22:58 UTC
Sidebery verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about Sidebery

What does Sidebery do?: Sidebery focuses on managing large collections of Firefox tabs and bookmarks without leaving the browser sidebar. It is catalogued under Browser DevTools & extensions on PulseGate.
Who should use Sidebery?: Sidebery is an open-source project built for firefox users who need advanced tab and bookmark organization.
Is Sidebery free?: Yes — Sidebery is open source under the Open Source license and free to use.
What platforms does Sidebery run on?: Sidebery runs on the web, embeddable surfaces, macOS, Windows, and Linux.
Is Sidebery still maintained?: Unverified. Sidebery has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.
What projects are similar to Sidebery?: Similar projects tracked by PulseGate include Tab in Side, Side View, and Notes on Sidebar.Tab in Side Side View Notes on Sidebar
Who makes Sidebery?: Sidebery is developed by mbnuqw.
How long has Sidebery been around?: Sidebery first shipped in 2018.

At a glance

Pricing: Open Source
Platforms: Web
Languages: English
License: Open Source
First seen: 7 Sept 2026
Built for: Firefox users who need advanced tab and bookmark organization
Model: Open source
Solves: Managing large collections of Firefox tabs and bookmarks without leaving the browser sidebar.

Registered as

Firefox Add-ons: sidebery

Developer

mbnuqw

Index record

Indexed: 7 Sept 2026
Lifecycle: Alive
First seen: Sept 2026
Last seen: 7 Sept 2026

Identity audit (13)

Slug: sidebery-github-com
Lifecycle last checked: 8 Sept 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 7 Sept 2026
Timeline basis: Indexed-at chronology (no inferred launch/funding milestones).
Name from: Written by a language model from the project's public pages.
Category from: Assigned by a language model.
Summary from: Written by a language model from public pages.
Languages from: Detected by a language model, checked against the page's own declaration.
Last updated: 7 Sept 2026
Canonical URL: https://github.com/mbnuqw/sidebery

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