Font Changer Firefox

Font Changer

Font Changer allows you change the font of any website with your preferred Google Web Font quickly and easily. Just clicking the extension icon for the options.

Features & Capabilities

Font Changer lets you replace the font of any website with Google Web Fonts. With a single click on the extension icon, you can apply global font changes or set per-site typography, including weight and style, across the web.

Choose which tags to style, save preferences per site, and enjoy a more consistent or personalized reading experience. Simple, fast, and flexible for designers and casual readers alike.

User Growth & Download Statistics

By:
ExtensionHub
Daily users:
2,097 -13
Rating:
3.52
(61)
Version:
3.0.2 Last updated: 2026-01-22
Version code:
6128392
Creation date:
2020-03-19
Risk:
Moderate risk impact Moderate risk likelihood
Permissions:
Host permissions:
  • <all_urls>
Content scripts matches:
  • <all_urls>
Size:
378.78KB
Email:
co*****@gmail.com
Full description:
See detailed description
Source:
Firefox Add-ons Store
Data ingested on:
2026-06-18
Compare stats and ranking:

Other platforms

Chrome
Font Changer (v3.0.1)
30,000 3.56 (105)

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.
Developed by:
ExtensionHub
Firefox Add-ons Store
https://addons.mozilla.org/firefox/addon/web-font-changer/
Email:
co*****@gmail.com

Permission Change History

2026-01-21: Version 2.2.1 → 3.0.1
Add Host permissions: <all_urls>
Remove Permissions: tabs

User Reviews

Users praise Font Changer for its easy interface, instant font switching, use of system fonts across sites, and persistent preferences that improve readability. However, common downsides include a very small predefined font list with no option to add custom fonts, occasional rendering issues such as icons breaking or font substitutions on some sites, and compatibility gaps across browsers and mobile platforms.
Pros
  • Easy-to-use interface with instant font changes across any website.
  • Personalization by using system-installed fonts on the user's machine across all sites.
  • Preferences persist across sessions with a one-click option to restore original fonts.
  • Notable readability improvements (eye-strain reduction) reported by several users.
Cons
  • Very limited predefined font catalog with no support for adding custom fonts (repeated across multiple reviews).
  • Rendering and layout issues on some sites (e.g., icons disappearing, font substitution like Times New Roman) when changing fonts.
  • Cross-browser and platform compatibility limitations (not working on some forks like IronFox; not available on mobile apps).
Recent reviews
excellent, please just add an option to upload font files from computer and fix the bug that makes it reset each websites font once i click "reset font" instead of just the site im on when i click "reset font"
by Fi*****, 2026-04-08

It doesn't override most websites font settings, so it works only on a few web pages.
by CA*****, 2026-04-02

It seems every change falls back to Times New Roman.
by Zi*****, 2026-03-25
View all user reviews ›

Is Font Changer Safe?

Risk impact
Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

Font Changer requires a few sensitive permissions. Exercise caution before installing.

Risk impact analysis details
  • Critical Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
  • High ******* ******* **** *** ****** ***** *** ***** ** ******* **** ********* ********* ** * *********** *****
Risk likelihood
Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

Font Changer is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

Risk likelihood analysis details
  • High This extension has low user count. Unpopular extensions may not be stable or safe.
  • Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
  • Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
  • Good **** ********* *** **** **** *******
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