# Tab Numbers

> Displays \[1\]-\[8\] in tab titles for easy Ctrl+Number keyboard navigation

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

## Overview

- **ID:** `tab-numbers`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** piyush
- **Category:** appearance,tabs
- **Daily users:** 13
- **Weekly downloads:** 2
- **Rating:** 5.00 / 5 (1 ratings)
- **Version:** 1.1.0
- **Last updated:** 2026-01-24
- **First published:** 2026-01-11
- **Size:** 17 KB
- **Data as of:** 2026-09-16
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/tab-numbers/)

## Description

A lightweight Firefox extension that displays [1]-[8] prefixes in tab titles for easy keyboard navigation using Ctrl+Number.

<strong>Features:</strong>
    ✅ Clear, readable [1] Page Title format
    ✅ Supports tabs 1-8 (Ctrl+9 goes to last tab in Firefox)
    ✅ Includes pinned tabs in numbering
    ✅ Cross-window tab dragging support
    ✅ Automatically renumbers when tabs are moved, closed, or created
    ✅ Privacy-focused: No data collection, no network requests

<strong>Installation</strong>
From Firefox Add-ons (Recommended)

<strong>Github Repo</strong>: <a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/836fea30ff62e1e68a1caa59bdfa9372eea798b068a3f73dd5b1c95c1b77f0fe/https%3A//github.com/piyushjain9399/firefox-tab-numbers" rel="nofollow">https://github.com/piyushjain9399/firefox-tab-numbers</a>

<strong>How It Works</strong>
The extension uses Firefox's scripting.executeScript() API to modify document.title on each tab. It listens to all tab events (created, removed, moved, attached, detached) to keep numbers synchronized.
Keyboard     Shortcuts
Shortcut    Action
Ctrl+1  Switch to tab 1
Ctrl+2  Switch to tab 2
...     ...
Ctrl+8  Switch to tab 8
Ctrl+9  Switch to last tab (Firefox default)
<blockquote>Note: These are Firefox's built-in shortcuts - the extension just makes it easier to identify which tab corresponds to which number! The Ctrl+9 → last tab behavior is a Firefox default that cannot be changed by extensions.</blockquote>
<strong>Known Limitations</strong>
- Some tabs cannot display the number prefix due to Firefox's security model:
    - about: pages (settings, debugging, etc.)
    - moz-extension:// pages
    - Firefox's built-in PDF viewer
    - New Tab page
These tabs will still work with Ctrl+N shortcuts - they just won't show the [N] prefix.

<strong>Privacy</strong>:
This extension:
    ✅ Only reads tab titles and positions
    ❌ Does NOT access URLs or browsing history
    ❌ Does NOT store any data (locally or remotely)
    ❌ Does NOT make any network requests

<strong>Permissions required:</strong>
    tabs - Read tab titles and positions
    scripting - Modify tab titles via document.title
    &lt;all_urls&gt; - Required for scripting.executeScript() to work on web pages

<strong>Requirements</strong>
    Firefox 140 or later

<strong>License</strong>
MIT License - feel free to use, modify, and distribute!

<strong>Contributing</strong>
Contributions are welcome! Feel free to open issues or submit pull requests.

## Rankings

- #29,809 — Overall
- #3 — plumbers
- #29 — number

## Permissions and access

### Permissions

- `tabs`
- `scripting`

### Host permissions

- `<all_urls>`

## Safety

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