Head over to the <a href="https://developer.mozilla.org/Add-ons">Mozilla Developer Network</a> to learn everything you need to know to get started.
Źiśo k <a href="https://developer.mozilla.org/Add-ons">Mozilla Developer Network</a> (wuwijarska seś Mozilla), aby wšykno zgónił, což musyśo wěźeś, aby zachopił.