# webextensions-examples Example Firefox add-ons created using the [WebExtensions](https://developer.mozilla.org/en-US/Add-ons/WebExtensions) API. * Before you try out these extensions, read about [prerequisites](https://developer.mozilla.org/en-US/Add-ons/WebExtensions/Prerequisites). * To test out an extension in Firefox, see [Packaging and Installation](https://developer.mozilla.org/en-US/Add-ons/WebExtensions/Packaging_and_installation). * To see details of each extension, what it does and what it demonstrates, see the [WebExtensions Examples page](https://developer.mozilla.org/en-US/Add-ons/WebExtensions/Examples).