# FontMaster Pro: Advanced Font Customizer

> Customize font size, style, line spacing, and more for enhanced readability across websites.

Canonical page: [https://chrome-stats.com/d/fontmaster-pro-advanced](https://chrome-stats.com/d/fontmaster-pro-advanced)

## Overview

- **ID:** `fontmaster-pro-advanced`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Removed
- **Publisher:** 789WIN
- **Version:** 1.0
- **Last updated:** 2024-08-27
- **First published:** 2024-08-26
- **Size:** 19 KB
- **Data as of:** 2026-05-13
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/fontmaster-pro-advanced/)

## Description

Font size, family, line height, letter spacing, and text alignment customization
Text and background color customization
Site-specific settings
Custom font upload feature
Preset styles for quick application
Reading mode with customizable colors
Options page for advanced settings
Responsive popup interface for quick adjustments

## Permissions and access

### Permissions

- `activeTab`
- `storage`
- `tabs`
- `<all_urls>`

### Content script matches

- `<all_urls>`

## Safety

- **Risk impact:** High 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 is not longer available in the store

> 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/fontmaster-pro-advanced)