# Custom Tab Appearance

> Customize website titles and favicons based on rules

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

## Overview

- **ID:** `custom-tab-appearance`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Michael Lauwereys
- **Category:** appearance,tabs
- **Daily users:** 15
- **Weekly downloads:** 2
- **Version:** 1.1
- **Last updated:** 2025-02-18
- **First published:** 2025-02-12
- **Size:** 23 KB
- **Data as of:** 2026-09-09
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/custom-tab-appearance/)
- **Website:** [https://github.com/michaellauwereys/custom-tab-appearance](https://github.com/michaellauwereys/custom-tab-appearance)

## Description

<strong>Custom Tab Appearance</strong>

Allows you to customize website titles and favicons based on custom rules.  

<strong>Features</strong>  
<ul><li><strong>Custom Titles</strong>: Change tab titles based on domain, title content, or regex patterns  </li><li><strong>Custom Favicons</strong>: Choose from a variety of emoji icons or upload your own custom images  </li><li><strong>Rule Management</strong>:  </li><li>Enable/disable rules  </li><li>Edit existing rules  </li><li>Import/export rules as JSON  </li><li><strong>Flexible Matching</strong>:  </li><li>Domain matching (e.g., "<a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/18292d9c1899dd2b453ea9e3c1375587569f07a1d91694af6d865f8eab086cdb/http%3A//github.com" rel="nofollow">github.com</a>")  </li><li>Title matching (e.g., "Pull Request")  </li><li>RegEx matching for advanced patterns  </li></ul>
<strong>Usage</strong>  

<strong>Adding Rules</strong>  
<ol><li>Click the extension icon to open the settings  </li><li>Select a match type (Domain, Title, or RegEx)  </li><li>Enter the pattern to match  </li><li>Enter the new title you want to display  </li><li><em>(Optional)</em> Choose a favicon:  </li><li>Select from the emoji grid  </li><li>Import your own image using the "+" button  </li><li>Click "Add Rule" to save  </li></ol>
<strong>Managing Rules</strong>  
<ul><li><strong>Enable/Disable</strong>: Toggle rules on/off using the enable/disable button  </li><li><strong>Edit</strong>: Modify existing rules using the edit button  </li><li><strong>Delete</strong>: Remove rules using the delete button  </li><li><strong>Bulk Actions</strong>:  </li><li>Export all rules to a JSON file  </li><li>Import rules from a JSON file  </li><li>Remove all rules at once</li></ul>

## Rankings

- #27,905 — Overall
- #121 — customer
- #128 — custom font
- #129 — custom feed
- #149 — rule
- #220 — customize

## Permissions and access

### Permissions

- `activeTab`
- `tabs`
- `storage`
- `<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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- [Rules Based Tabs](https://chrome-stats.com/d/rules-based-tabs)
- [Custom Tab Look](https://chrome-stats.com/d/custom-tab-look)

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Source: [Chrome-Stats](https://chrome-stats.com/d/custom-tab-appearance)