Platform fees

Compare extension publishing costs: Chrome, Firefox and more

Check whether the extension store supports paid sales or whether you need your own checkout. Compare publishing costs and commissions separately from payment processing.

3 platforms

US / USD unless labelled

Last checked

Sources and dates

Chrome Web Store

Checked

Publishing cost
New publisher registration is $5 once; adding members to an existing publisher is free. Source
Paid sales
Paid products are allowed. The developer is responsible for payment processing, records and taxes. Source
Store commission
Google does not process paid-product transactions through Chrome Web Store checkout. Source
Availability
Chrome browser extensions; new listings and updates are subject to store review. Source

Microsoft Edge Add-ons

Checked

Publishing cost
Microsoft charges no registration fee for extension submissions. Source
Paid sales
Third-party purchase API required for physical goods/services and specified other payments; disclose paid offers and prices. Source
Store commission
Microsoft publishes no Edge Add-ons store transaction fee. Source
Availability
Microsoft Edge extensions; API support varies by operating system. Source

Firefox Add-ons

Checked

Publishing cost
AMO provides free hosting and update services for add-ons. Source
Paid sales
AMO downloads stay free; developers can charge for features through a payment provider they choose. Source
Store commission
AMO is free to download; paid features and donations use payment services chosen by developers. Source
Availability
Firefox desktop add-ons and add-ons compatible with Firefox for Android. Source