Integration surface

Browser extension stores app marketplaces

Stores distributing browser extensions that run in the page context and reach end users directly.

6 marketplaces in this directory match this tag.

Google LLC

Browser

Distribution store for Chrome browser extensions, themes, and progressive web apps.

Onboarding$5 one-time developer registration fee

Commission0% (Chrome Web Store payments API deprecated; developers self-manage billing)

Moderate· L2

Microsoft Corporation

Browser

Store for Edge browser extensions, largely Manifest V3-compatible with Chrome Web Store submissions.

Onboarding$0

Commission15% on paid extensions via Microsoft Store commerce

Moderate· L2

Mozilla Foundation

Browser

Open, community-oriented store for Firefox WebExtensions and themes.

Onboarding$0

Commission0%

Simple· L1

Opera Norway AS

Browser

Opera's official catalog for Chromium-based WebExtensions, free to publish but subject to slow human moderation.

Onboarding$0

CommissionNo store commerce system; extensions are distributed free

Moderate· L2

Raycast Technologies Ltd.

Productivity

Open-source extension store for the Raycast launcher, published via GitHub PR review, free and MIT-licensed, with AI-agent tool support.

Onboarding$0

CommissionNo store commerce system (Raycast monetizes via its own Pro subscription)

Moderate· L2

AI agents

Apple Inc.

Browser

Safari's browser extensions, distributed only as App Store apps under Apple Developer Program terms and full App Review.

Onboarding$99/year Apple Developer Program membership

CommissionStandard App Store terms: 30%, or 15% under the Small Business Program

Advanced· L3

More integration surface tags