# Nested tab numbering

> An extension for Tree Style Tab that displays a hierarchical count in the corner of each tab.

Canonical page: [https://chrome-stats.com/d/nested-tab-numbering](https://chrome-stats.com/d/nested-tab-numbering)

## Overview

- **ID:** `nested-tab-numbering`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** ryanyrzh
- **Category:** appearance,tabs
- **Daily users:** 1
- **Version:** 1.1.0
- **Last updated:** 2026-07-23
- **First published:** 2026-07-10
- **Size:** 28 KB
- **Data as of:** 2026-09-08
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/nested-tab-numbering/)

## Description

This is a super lightweight Firefox extension for <a href="https://addons.mozilla.org/firefox/addon/tree-style-tab/" rel="nofollow">Tree Style Tab</a> that overlays tab numbers on the corners of each tab, with two possible counting rules:
<ul><li><strong>Nested count.</strong> Hierarchical numbering that follows the tree structure</li><li><strong>Flat count.</strong> Simple sequential numbering across the window</li></ul>
Includes some simple customization options for text location, font style, etc.

Works well with dynamically-colored themes like that offered by <a href="https://addons.mozilla.org/en-US/firefox/addon/adaptive-tab-bar-colour/" rel="nofollow">Adaptive Tab Bar Color</a>!

## Rankings

- #90,216 — Overall
- #118 — number

## Permissions and access

### Permissions

- `tabs`
- `storage`
- `management`
- `https://addons.mozilla.org/*`

## Safety

- **Risk impact:** Moderate risk impact
- **Risk likelihood:** High 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/nested-tab-numbering)