# FontSizer

> A simple extension that adjusts the font size on almost every website.

Canonical page: [https://chrome-stats.com/d/font\_sizer](https://chrome-stats.com/d/font_sizer)

## Overview

- **ID:** `font_sizer`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Ignacio Searles
- **Category:** appearance
- **Daily users:** 7
- **Weekly downloads:** 2
- **Rating:** 3.00 / 5 (2 ratings)
- **Version:** 1.0
- **Last updated:** 2020-07-30
- **First published:** 2020-07-29
- **Size:** 15 KB
- **Data as of:** 2026-09-08
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/font_sizer/)

## Description

FontSizer is a simple Firefox add-on that enables users to adjust the font size on almost any website. With a convenient slider, this extension is especially helpful for individuals with visual impairments or difficulty reading small text.

## Rankings

- #38,015 — Overall
- #82 — size
- #96 — font

## Permissions and access

### Permissions

- `storage`

### Content script matches

- `<all_urls>`

## Safety

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

### Analysis details

- Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
- 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).

## Similar extensions and apps

- [FontSizer](https://chrome-stats.com/d/fontsizer)
- [Font Size Adjuster](https://chrome-stats.com/d/font-size-adjuster-thomas)
- [Font Re-Sizer](https://chrome-stats.com/d/font-re-sizer) — 2 users, 4.00 / 5
- [Font Adjuster](https://chrome-stats.com/d/font-adjuster) — 11 users, 5.00 / 5
- [Simple Font Changer](https://chrome-stats.com/d/font-changer-au) — 3 users, 4.00 / 5
- [Font Resizer](https://chrome-stats.com/d/font-resizer)
- [Text Size Changer](https://chrome-stats.com/d/text-size-changer) — 7 users
- [Font Sizes](https://chrome-stats.com/d/font-sizes) — 1 users
- [Website Font Switcher](https://chrome-stats.com/d/website-font-switcher) — 1 users, 5.00 / 5
- [Font Size Adjuster](https://chrome-stats.com/d/font-size-adjuster-iue) — 18 users, 3.00 / 5
- [Font Size Increase](https://chrome-stats.com/d/font-size-increase-for-firefox) — 1,009 users, 4.25 / 5
- [Page Font Resizer](https://chrome-stats.com/d/page-font-resizer)

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