Port a Chrome Extension
Firefox supports WebExtension APIs, which in most cases are compatible with the extension APIs supported by Chrome, Opera and Edge, so your extensions will run in Firefox with just a few changes.
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Add-ons let millions of Firefox users enhance their browsing experience. If you know HTML, JavaScript, and CSS, you already have all the necessary skills to make a great add-on.
Learn How to Make an Add-onFirefox supports WebExtension APIs, which in most cases are compatible with the extension APIs supported by Chrome, Opera and Edge, so your extensions will run in Firefox with just a few changes.
Learn How
Have an add-on ready? Submit your extension or theme to be listed on addons.mozilla.org or sign and distribute your extension on your own.
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