Who is TST Lock Tree Collapsed for?

TST Lock Tree Collapsed is an open-source project built for firefox users who organize tabs with Tree Style Tab.

Is TST Lock Tree Collapsed free?

Yes — TST Lock Tree Collapsed is open source under the Open Source license and free to use.

What platforms does TST Lock Tree Collapsed run on?

TST Lock Tree Collapsed runs on the web and embeddable surfaces.

Is TST Lock Tree Collapsed still maintained?

Unverified. TST Lock Tree Collapsed 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 TST Lock Tree Collapsed?

Similar projects tracked by PulseGate include TST Lock, TST Active Tab in Collapsed Tree, and TST Folder Expand Collapse.

Who develops TST Lock Tree Collapsed?

TST Lock Tree Collapsed is developed by piroor.

How long has TST Lock Tree Collapsed been around?

TST Lock Tree Collapsed first shipped in 2020.

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TST Lock Tree Collapsed

Name: TST Lock Tree Collapsed
Author: piroor

github.comBrowser DevTools & extensions

TST Lock Tree Collapsed is an open-source Firefox extension for Tree Style Tab. It lets users lock specific tab trees in a collapsed state to keep large tab hierarchies organized.

Open SourceWebEmbeddable

Visit github.com

Overview

4 features

TST Lock Tree Collapsed is a Browser DevTools & extensions project. It focuses on preventing selected Tree Style Tab browser trees from expanding unexpectedly. TST Lock Tree Collapsed is an open-source project aimed at firefox users who organize tabs with Tree Style Tab. The project is open source (Open Source). It runs on the web and embeddable surfaces.

It is developed by piroor, and it first shipped in 2020. Among its 4 catalogued features are tree locking, collapsed trees, and Tree Style Tab support.

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

Tree locking
Collapsed trees
Tree Style Tab support
Firefox integration

Built with & integrations

Runs on

BrowserEmbeddable

Trust & compliance

License

Open Source

Verified signals

HTTPSOpen SourceFree tierStore-verified publisher

Indexing history

What PulseGate has recorded for this listing

Indexed11 Sep · 08:35 UTC
TST Lock Tree Collapsed verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about TST Lock Tree Collapsed

What is TST Lock Tree Collapsed?: TST Lock Tree Collapsed focuses on preventing selected Tree Style Tab browser trees from expanding unexpectedly. It is catalogued under Browser DevTools & extensions on PulseGate.
Who is TST Lock Tree Collapsed for?: TST Lock Tree Collapsed is an open-source project built for firefox users who organize tabs with Tree Style Tab.
Is TST Lock Tree Collapsed free?: Yes — TST Lock Tree Collapsed is open source under the Open Source license and free to use.
What platforms does TST Lock Tree Collapsed run on?: TST Lock Tree Collapsed runs on the web and embeddable surfaces.
Is TST Lock Tree Collapsed still maintained?: Unverified. TST Lock Tree Collapsed 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 TST Lock Tree Collapsed?: Similar projects tracked by PulseGate include TST Lock, TST Active Tab in Collapsed Tree, and TST Folder Expand Collapse.TST Lock TST Active Tab in Collapsed Tree TST Folder Expand Collapse
Who develops TST Lock Tree Collapsed?: TST Lock Tree Collapsed is developed by piroor.
How long has TST Lock Tree Collapsed been around?: TST Lock Tree Collapsed first shipped in 2020.

At a glance

Pricing: Open Source
Platforms: Web
Languages: English
License: Open Source
First seen: 11 Sep 2026
Built for: Firefox users who organize tabs with Tree Style Tab
Model: Open source
Solves: Preventing selected Tree Style Tab browser trees from expanding unexpectedly.

Registered as

Firefox Add-ons: tst-lock-tree-collapsed

Developer

piroor

Index record

Indexed: 11 Sep 2026
Lifecycle: Alive
First seen: Sep 2026
Last seen: 11 Sep 2026

Identity audit (13)

Slug: tst-lock-tree-collapsed-github-com
Lifecycle state recorded: 11 Sep 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 11 Sep 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: 11 Sep 2026
Canonical URL: https://github.com/piroor/tst-lock-tree-collapsed

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