Prispôsobte si Firefox

Add-ons let millions of Firefox users enhance their browsing experience. If you know HTML, JavaScript, andCSS, you already have all the necessary skills to make a great add-on.

Learn How to Make an Add-on

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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Publish Your Add-on

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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Update Your Legacy Extension

There is a new, cross-browser standard for developing extensions in Firefox. You'll need to update your legacy extensions to stay compatible.

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