# TST Lock Tree Collapsed

> Provides ability to lock trees in Tree Style Tab as collapsed.

Canonical page: [https://chrome-stats.com/d/tst-lock-tree-collapsed](https://chrome-stats.com/d/tst-lock-tree-collapsed)

## Overview

- **ID:** `tst-lock-tree-collapsed`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Piro (piro\_or)
- **Category:** appearance,tabs
- **Daily users:** 176
- **Weekly downloads:** 2
- **Rating:** 4.20 / 5 (5 ratings)
- **Version:** 1.4.3
- **Last updated:** 2024-04-02
- **First published:** 2020-03-06
- **Size:** 33 KB
- **Data as of:** 2026-09-07
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/tst-lock-tree-collapsed/)
- **Website:** [https://github.com/piroor/tst-lock-tree-collapsed/issues](https://github.com/piroor/tst-lock-tree-collapsed/issues)
- **Privacy policy:** [https://addons.mozilla.org/firefox/addon/tst-lock-tree-collapsed/privacy/](https://addons.mozilla.org/firefox/addon/tst-lock-tree-collapsed/privacy/)

## Description

**TST Lock Tree Collapsed** is a helpful Chrome extension designed for users of the Tree Style Tab (TST) browser extension, version 3.4.0 and above. It enhances tab management by allowing users to lock tab trees in their collapsed state, effectively preventing frequent and unwanted expansions. 

By simply double-clicking on a parent tab, TST Lock Tree Collapsed ensures the tab tree remains collapsed and avoids automatic expansions during various browser actions. This feature was originally part of TST versions 3.3.0 to 3.3.6 but has since been separated into this dedicated helper addon for better functionality and user control.

## Rankings

- #8,801 — Overall
- #162 — poll
- #169 — expand
- #181 — maps

## Permissions and access

### Permissions

- `menus`
- `tabs`
- `sessions`
- `storage`

## Safety

- **Risk impact:** Moderate risk impact
- **Risk likelihood:** Low risk likelihood

### Analysis details

- Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
- This extension has low user count. Unpopular extensions may not be stable or safe.

> Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing).

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Source: [Chrome-Stats](https://chrome-stats.com/d/tst-lock-tree-collapsed)