Who is Font Swap for?

Font Swap is a consumer product built for firefox users, web designers, and developers.

Yes — Font Swap is free to use.

What platforms does Font Swap run on?

Font Swap runs on the web and embeddable surfaces.

Is Font Swap still maintained?

Unverified. Font Swap has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.

What are alternatives to Font Swap?

Similar projects tracked by PulseGate include Font Changer, Swap Google Fonts Display, and Letter Swap.

Font Swap is developed by Mike Manfrin.

How long has Font Swap been around?

Font Swap first shipped in 2026.

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Font Swap

Name: Font Swap
Author: Mike Manfrin

mozilla.orgBrowser DevTools & extensions

Font Swap is a Firefox extension that lets users preview websites with fonts from Google Fonts. It provides keyboard navigation, font favorites, resettable font lists, and links to Google Fonts pages while storing data locally.

FreeWebEmbeddable

Visit mozilla.org

Overview

8 features

Font Swap is a Browser DevTools & extensions project. It focuses on previewing how websites look with different Google Fonts without manually changing CSS. It is built as a consumer product for firefox users, web designers, and developers. Font Swap is free to use. It runs on the web and embeddable surfaces.

Behind Font Swap is Mike Manfrin, and it first shipped in 2026. Key capabilities include Google Fonts list, font preview, and keyboard navigation. The interface is available in 32 languages, including Czech, German, and Greek.

Summary written by a language model from the project’s public pages.

Google Fonts list
Font preview
Keyboard navigation
Font favorites
Font list reset
Google Fonts links
Local data storage
CSS injection

Built with & integrations

Runs on

BrowserEmbeddable

Trust & compliance

Verified signals

HTTPSPrivacy Policy Terms of ServiceFree tierMulti-languageStore-verified publisher

Legal

Indexing history

What PulseGate has recorded for this listing

Indexed28 Aug · 17:01 UTC
Font Swap verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about Font Swap

What does Font Swap do?: Font Swap focuses on previewing how websites look with different Google Fonts without manually changing CSS. It is catalogued under Browser DevTools & extensions on PulseGate.
Who is Font Swap for?: Font Swap is a consumer product built for firefox users, web designers, and developers.
Is Font Swap free?: Yes — Font Swap is free to use.
What platforms does Font Swap run on?: Font Swap runs on the web and embeddable surfaces.
Is Font Swap still maintained?: Unverified. Font Swap has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.
What are alternatives to Font Swap?: Similar projects tracked by PulseGate include Font Changer, Swap Google Fonts Display, and Letter Swap.Font Changer Swap Google Fonts Display Letter Swap
Who makes Font Swap?: Font Swap is developed by Mike Manfrin.
How long has Font Swap been around?: Font Swap first shipped in 2026.

At a glance

Pricing: Free
Platforms: Web
First seen: 28 Aug 2026
Built for: Firefox users, web designers, and developers
Model: B2C
Solves: Previewing how websites look with different Google Fonts without manually changing CSS.

Registered as

Firefox Add-ons: font-swap

Developer

Mike Manfrin

Index record

Indexed: 28 Aug 2026
Lifecycle: Alive
First seen: Aug 2026
Last seen: 28 Aug 2026

Identity audit (13)

Slug: font-swap-mozilla-org
Lifecycle last checked: 8 Sept 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 28 Aug 2026
Timeline basis: Indexed-at chronology (no inferred launch/funding milestones).
Name from: Derived from the project's own page and URL.
Category from: Assigned by a language model.
Summary from: Written by a language model from public pages.
Languages from: Detected by a language model, checked against the page's own declaration.
Last updated: 28 Aug 2026
Canonical URL: https://addons.mozilla.org/en-US/firefox/addon/font-swap

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