Firefox Developer Edition

<!doctype html> <html class="windows no-js" lang="dsb" dir="ltr" data-country-code="HK" data-needs-consent="False" data-latest-firefox="133.0" data-esr-versions="128.5.0" data-gtm-container-id="GTM-MW3R8V" data-stub-attribution-rate="1.0" data-sentry-dsn="https://c3ab8514873549d5b3785ebc7fb83c80@o1069899.ingest.sentry.io/6260331" > <head> <meta charset="utf-8">  <script src="https://www.mozilla.org/media/js/site.b49d941e3374.js"></script>    <meta name="viewport" content="width=device-width, initial-scale=1"> <title>Firefox Developer Edition</title> <meta name="description" content="Firefox Developer Edition jo malsny kaž błysk wobglědowak, kótaryž wjelicne wuwijarske rědy a nejnowše funkcije ako pódpěru CSS-kśidnow a framework debugging bitujo"> <meta property="og:type" content="website"> <meta property="og:site_name" content="Mozilla"> <meta property="og:locale" content="dsb"> <meta property="og:url" content="https://www.mozilla.org/dsb/firefox/developer/"> <meta property="og:image" 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firefox"> <svg class="c-menu-item-icon" xmlns="http://www.w3.org/2000/svg" width="32" height="32" viewBox="0 0 32 32"><path fill="#42435a" d="M21.1 7.5c-.2-.2-.2-.5 0-.7l.5-.5c.8-.8 2.1-.8 2.9 0l1.2 1.2c.8.8.8 2.1 0 2.9l-.5.5c-.2.2-.5.2-.7 0l-3.4-3.4zm2.3 4.5c.2.2.2.5 0 .7L12.7 23.4c-.2.2-.4.3-.6.4l-5.7 2.4c-.3.1-.6 0-.7-.3-.1-.1-.1-.3 0-.4L8.1 20c.1-.2.3-.5.4-.6L19.2 8.6c.2-.2.5-.2.7 0l3.5 3.4zM11.5 22.7l-3.9 1.7 1.7-3.9c0-.1.1-.2.2-.2l2.3 2.3c-.1 0-.2.1-.3.1z"></path></svg> <h4 class="c-menu-item-title">Blog Firefox</h4> <p class="c-menu-item-desc">Informěrujśo se wó nejnowšych funkcijach a móžnosćach Firefox, aby online wěsty wóstał.</p> </a> </section> </li> <li> <section class="c-menu-item mzp-has-icon"> <a class="c-menu-item-link" href="/firefox/133.0/releasenotes/" data-link-text="Release Notes" data-link-position="topnav - firefox"> <svg class="c-menu-item-icon" xmlns="http://www.w3.org/2000/svg" width="32" height="32" viewBox="0 0 32 32"><path fill="#42435a" d="M2.7 23.6c0 2.4 2 4.4 4.4 4.4h5.6c1.4 0 2.3.5 3.3 1.5 1-1 2-1.5 3.3-1.5h5.6c2.4 0 4.4-2 4.4-4.4V8.4c0-2.4-2-4.4-4.4-4.4h-5.6C18 4 17 4.2 16 5.2c-1-1-2-1.2-3.3-1.2H7.1C4.6 4 2.7 6 2.7 8.4v15.2zm24 0c0 1-.8 1.7-1.7 1.7h-5.6c-1.3 0-2.3.2-3.3 1.2-1-1-2-1.2-3.3-1.2H7.1c-1 0-1.7-.8-1.7-1.7V8.4c0-1 .8-1.7 1.7-1.7h5.6c1.3 0 2.3.5 3.3 1.5 1-1 2-1.5 3.3-1.5h5.6c1 0 1.7.8 1.7 1.7v15.2zM13.3 10.7H8c-.4 0-.7-.3-.7-.7 0-.4.3-.7.7-.7h5.3c.4 0 .7.3.7.7 0 .4-.3.7-.7.7zm-5.3 4h5.3c.4 0 .7-.3.7-.7s-.3-.7-.7-.7H8c-.4 0-.7.3-.7.7s.3.7.7.7zm5.3 4H8c-.4 0-.7-.3-.7-.7s.3-.7.7-.7h5.3c.4 0 .7.3.7.7s-.3.7-.7.7zm-5.3 4h3.4c.4 0 .7-.3.7-.7s-.3-.7-.7-.7H8c-.4 0-.7.3-.7.7s.3.7.7.7z"></path></svg> <h4 class="c-menu-item-title">Wersijowe informacije</h4> <p class="c-menu-item-desc">Zgóńśo drobnostki wó nejnowšych aktualizacijach Firefox.</p> </a> </section> </li> </ul> <p class="c-menu-category-link"><a href="/dsb/firefox/" data-link-text="View all Firefox Browsers" data-link-position="topnav - firefox">Wšykne Wobglědowaki Firefox pokazaś</a></p> </div> </div> </div> </li> <li class="c-menu-category mzp-has-drop-down mzp-js-expandable"> <a class="c-menu-title" href="/dsb/products/" aria-haspopup="true" aria-controls="c-menu-panel-products" data-testid="navigation-link-products">Produkty</a> <div class="c-menu-panel" id="c-menu-panel-products" data-testid="navigation-menu-products"> <div class="c-menu-panel-container"> <button class="c-menu-button-close" type="button" aria-controls="c-menu-panel-products">Produktowy meni zacyniś</button> <div class="c-menu-panel-content"> <ul class="mzp-l-rows-four"> <li> <section class="c-menu-item mzp-has-icon"> <a class="c-menu-item-link" href="https://monitor.mozilla.org/?utm_source=www.mozilla.org&utm_medium=referral&utm_campaign=nav&utm_content=products" data-link-text="Mozilla Monitor" data-link-position="topnav - products"> <img loading="lazy" src="https://www.mozilla.org/media/protocol/img/logos/firefox/monitor/logo.d97e5516f9e6.svg" class="c-menu-item-icon" width="32" height="32" alt=""> <h4 class="c-menu-item-title">Mozilla Monitor</h4> <p class="c-menu-item-desc">Glědajśo, lěc se waša e-mailowa adresa w datowej źěrje pśedewześa pokazujo.</p> </a> </section> </li> <li> <section class="c-menu-item mzp-has-icon"> <a class="c-menu-item-link" href="/dsb/firefox/facebookcontainer/" data-link-text="Facebook Container" data-link-position="topnav - products"> <svg class="c-menu-item-icon" xmlns="http://www.w3.org/2000/svg" width="32" height="32" viewBox="0 0 32 32"><path fill="#f80073" d="M27 1H5C2.8 1 1 2.8 1 5v22c0 2.2 1.8 4 4 4h22c2.2 0 4-1.8 4-4V5c0-2.2-1.8-4-4-4z"></path><path fill="#fff" d="M26 8.8l-1.4-1.4c-.1-.1-.2-.1-.3 0l-1.4 1.4-.1.1v2.8h-2.3V8.9L19 7.4c-.1-.1-.2-.1-.3 0l-1.4 1.4-.1.1v2.8h-2.3V8.9l-1.4-1.4c-.1-.1-.2-.1-.3 0l-1.4 1.4-.1.1v2.8H9.2V8.9L7.8 7.4c-.1-.1-.2-.1-.3 0L6 8.8l-.1.1v15c0 .1.1.2.2.2H9c.1 0 .2-.1.2-.2v-2.8h2.3V24c0 .1.1.2.2.2h2.8c.1 0 .2-.1.2-.2v-2.8H17V24c0 .1.1.2.2.2H20c.1 0 .2-.1.2-.2v-2.8h2.3V24c0 .1.1.2.2.2h2.8c.1 0 .2-.1.2-.2V9c.4-.1.3-.2.3-.2zm-14.7 11H9.2v-6.6h2.3v6.6h-.2zm5.6 0h-2.1v-6.6h2.3v6.6h-.2zm5.7 0h-2.1v-6.6h2.3v6.6h-.2z"></path></svg> <h4 class="c-menu-item-title">Facebook Container</h4> <p class="c-menu-item-desc">Zawoborajśo Facebook waše daty zwenka jogo sedła gromaźiś.</p> </a> </section> </li> <li> <section class="c-menu-item mzp-has-icon"> <a class="c-menu-item-link" href="https://getpocket.com/firefox_learnmore/?utm_source=www.mozilla.org&utm_medium=referral&utm_campaign=nav&utm_content=products" data-link-text="Pocket" data-link-position="topnav - products"> <img loading="lazy" src="https://www.mozilla.org/media/protocol/img/logos/pocket/logo.17446bc33a5d.svg" class="c-menu-item-icon" width="32" height="32" alt=""> <h4 class="c-menu-item-title">Pocket</h4> <p class="c-menu-item-desc">Składujśo a namakajśo nejlěpše tšojeńka z cełego weba.</p> </a> </section> </li> <li> <section class="c-menu-item mzp-has-icon"> <a class="c-menu-item-link" href="/dsb/products/vpn/" data-link-text="Mozilla VPN" data-link-position="topnav - products"> <img loading="lazy" src="https://www.mozilla.org/media/protocol/img/logos/mozilla/vpn/logo.c648f487bfb8.svg" class="c-menu-item-icon" width="32" height="32" alt=""> <h4 class="c-menu-item-title">Mozilla VPN</h4> <p class="c-menu-item-desc">Wobstarajśo se šćit zwenka swójogo wobglědowaka, na wšych swójich rědach.</p> </a> </section> </li> <li> <section class="c-menu-item mzp-has-icon"> <a class="c-menu-item-link" href="https://relay.firefox.com/?utm_source=www.mozilla.org&utm_medium=referral&utm_campaign=nav&utm_content=products" data-link-text="Firefox Relay" data-link-position="topnav - projects"> <img loading="lazy" src="https://www.mozilla.org/media/protocol/img/logos/firefox/relay/logo.683083c53b93.svg" class="c-menu-item-icon" width="32" height="32" alt=""> <h4 class="c-menu-item-title">Firefox Relay</h4> <p class="c-menu-item-desc">Registrěrujśo se za nowe konta, bźez togo aby swóju e-mailowu adresu pódał.</p> </a> </section> </li> <li> <section class="c-menu-item mzp-has-icon"> <a class="c-menu-item-link" href="https://developer.mozilla.org/plus?utm_source=www.mozilla.org&utm_medium=referral&utm_campaign=nav&utm_content=products" data-link-text="MDN Plus" data-link-position="topnav - projects"> <img loading="lazy" src="https://www.mozilla.org/media/img/nav/icons/icon-mdn-plus.f54475f980ab.svg" class="c-menu-item-icon" width="32" height="32" alt=""> <h4 class="c-menu-item-title">MDN Plus</h4> <p class="c-menu-item-desc">Nowe funkcije a rědy za pśiměrjone dožywjenje MDN</p> </a> </section> </li> <li> <section class="c-menu-item mzp-has-icon"> <a class="c-menu-item-link" href="https://fakespot.com/?utm_source=www.mozilla.org&utm_medium=referral&utm_campaign=nav&utm_content=products" data-link-text="Fakespot" data-link-position="topnav - projects"> <img loading="lazy" src="https://www.mozilla.org/media/img/logos/fakespot/logo-blue.3973b8fe9631.svg" class="c-menu-item-icon" width="32" height="32" alt=""> <h4 class="c-menu-item-title">Fakespot</h4> </a> </section> </li> </ul> <p class="c-menu-category-link"><a href="/dsb/products/" data-link-text="View all Products" data-link-position="topnav - products">Wšykne produkty pokazaś</a></p> </div> </div> </div> </li> <li class="c-menu-category mzp-has-drop-down mzp-js-expandable"> <a class="c-menu-title" href="/dsb/about/" aria-haspopup="true" aria-controls="c-menu-panel-about" data-testid="navigation-link-who-we-are">Chto smy</a> <div class="c-menu-panel" id="c-menu-panel-about" data-testid="navigation-menu-who-we-are"> <div class="c-menu-panel-container"> <button class="c-menu-button-close" type="button" aria-controls="c-menu-panel-about">Meni „Chto smy“ zacyniś</button> <div class="c-menu-panel-content"> <ul class="mzp-l-rows-four"> <li> <section class="c-menu-item mzp-has-icon"> <a class="c-menu-item-link" href="/dsb/about/manifesto/" data-link-text="Mozilla Manifesto" data-link-position="topnav - who-we-are"> <svg class="c-menu-item-icon" xmlns="http://www.w3.org/2000/svg" width="32" height="32" viewBox="0 0 32 32"><path fill="#42435a" d="M9.5 28.6h13.1c2.6 0 4.6-2.1 4.6-4.6V8.1c0-2.6-2.1-4.6-4.6-4.6H9.5c-2.6 0-4.6 2.1-4.6 4.6V24c-.1 2.5 2 4.6 4.6 4.6zM7.6 8.1c0-1 .8-1.8 1.8-1.8h13.1c1 0 1.8.8 1.8 1.8V24c0 1-.8 1.8-1.8 1.8h-13c-1 0-1.8-.8-1.8-1.8V8.1zm12.6 2.3h-8.4c-.4 0-.7-.3-.7-.7 0-.4.3-.7.7-.7h8.4c.4 0 .7.3.7.7 0 .4-.3.7-.7.7zm-8.4 4.2h8.4c.4 0 .7-.3.7-.7s-.3-.7-.7-.7h-8.4c-.4 0-.7.3-.7.7s.3.7.7.7zm8.4 4.2h-8.4c-.4 0-.7-.3-.7-.7s.3-.7.7-.7h8.4c.4 0 .7.3.7.7s-.3.7-.7.7zM11.8 23h3.6c.4 0 .7-.3.7-.7s-.3-.7-.7-.7h-3.6c-.4 0-.7.3-.7.7s.3.7.7.7z"></path></svg> <h4 class="c-menu-item-title">Manifest Mozilla</h4> <p class="c-menu-item-desc">Zgóńśo wěcej wó gódnotach a zasadach, kótarež našu misiju wjadu.</p> </a> </section> </li> <li> <section class="c-menu-item mzp-has-icon"> <a class="c-menu-item-link" href="https://foundation.mozilla.org/?utm_source=www.mozilla.org&utm_medium=referral&utm_campaign=nav&utm_content=who-we-are" data-link-text="Mozilla Foundation" data-link-position="topnav - who-we-are"> <svg class="c-menu-item-icon" xmlns="http://www.w3.org/2000/svg" width="32" height="32" viewBox="0 0 32 32"><path fill="#42435a" d="M16 9.3V4H2.7v24h26.7V9.3H16zm-8 16H5.3v-2.7H8v2.7zM8 20H5.3v-2.7H8V20zm0-5.3H5.3V12H8v2.7zm0-5.4H5.3V6.7H8v2.6zm5.3 16h-2.7v-2.7h2.7v2.7zm0-5.3h-2.7v-2.7h2.7V20zm0-5.3h-2.7V12h2.7v2.7zm0-5.4h-2.7V6.7h2.7v2.6zm13.4 16H16v-2.7h2.7V20H16v-2.7h2.7v-2.7H16V12h10.7v13.3zM24 14.7h-2.7v2.7H24v-2.7zm0 5.3h-2.7v2.7H24V20z"></path></svg> <h4 class="c-menu-item-title">Mozilla Foundation</h4> <p class="c-menu-item-desc">Póznajśo za wše wužytnu organizaciju za Firefox, kótaraž za lěpšy web stoj.</p> </a> </section> </li> <li> <section class="c-menu-item mzp-has-icon"> <a class="c-menu-item-link" href="/about/leadership/" data-link-text="Leadership" data-link-position="topnav - who-we-are"> <svg class="c-menu-item-icon" xmlns="http://www.w3.org/2000/svg" width="32" height="32" viewBox="0 0 32 32"><path fill="#42435a" d="M22.7 13.9V2.7H9.3v11.2c0 .5.2.9.7 1.1l5.6 3.3-1.3 3.1-4.5.4 3.5 3-1.1 4.4L16 27l3.9 2.4-1-4.4 3.5-3-4.5-.4-1.3-3.1 5.6-3.3c.2-.4.5-.8.5-1.3zm-5.4 2.4l-1.3.8-1.3-.8V4h2.7v12.3z"></path></svg> <h4 class="c-menu-item-title">Wjednistwo</h4> <p class="c-menu-item-desc">Póznajśo team, kótaryž technologiju za lěpšy internet wuwija.</p> </a> </section> </li> <li> <section class="c-menu-item mzp-has-icon"> <a class="c-menu-item-link" href="/dsb/contribute/" data-link-text="Get Involved" data-link-position="topnav - who-we-are"> <svg class="c-menu-item-icon" xmlns="http://www.w3.org/2000/svg" width="32" height="32" viewBox="0 0 32 32"><path fill="#42435a" d="M12 22.7l4-3.9c-.5-.1-.9-.1-1.3-.1C11.1 18.7 4 20.5 4 24v2.7h12l-4-4zm2.7-6.7c2.9 0 5.3-2.4 5.3-5.3s-2.4-5.3-5.3-5.3-5.3 2.4-5.3 5.3c-.1 2.9 2.3 5.3 5.3 5.3z"></path><path fill="#42435a" d="M20.6 27.3L16 22.7l1.9-1.9 2.8 2.8 6.8-6.9 1.9 1.9-8.8 8.7z"></path></svg> <h4 class="c-menu-item-title">Cyńśo sobu</h4> <p class="c-menu-item-desc">Wójujśo z nami za strowy internet.</p> </a> </section> </li> <li> <section class="c-menu-item mzp-has-icon"> <a class="c-menu-item-link" href="/dsb/careers/" data-link-text="Careers" data-link-position="topnav - who-we-are"> <svg class="c-menu-item-icon" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32" width="32" height="32"><path fill="#42435a" d="M13.3 21.3V20H4v5.3C4 26.8 5.2 28 6.7 28h18.7c1.5 0 2.7-1.2 2.7-2.7V20h-9.3v1.3h-5.5zm13.4-12h-5.3V6.7L18.7 4h-5.3l-2.7 2.7v2.7H5.3c-1.5 0-2.7 1.2-2.7 2.7v4c0 1.5 1.2 2.7 2.7 2.7h8V16h5.3v2.7h8c1.5 0 2.7-1.2 2.7-2.7v-4c0-1.5-1.2-2.7-2.6-2.7zm-8 0h-5.3V6.7h5.3v2.6z"></path></svg> <h4 class="c-menu-item-title">Pówołanja</h4> <p class="c-menu-item-desc">Źěłajśo za organizaciju z misiju, za kótarejež produkty luźe na prědnem městnje stoje.</p> </a> </section> </li> <li> <section class="c-menu-item mzp-has-icon"> <a class="c-menu-item-link" href="https://blog.mozilla.org/?utm_source=www.mozilla.org&utm_medium=referral&utm_campaign=nav&utm_content=who-we-are" data-link-text="Mozilla Blog" data-link-position="topnav - who-we-are"> <svg class="c-menu-item-icon" xmlns="http://www.w3.org/2000/svg" width="32" height="32" viewBox="0 0 32 32"><path fill="#42435a" d="M21.1 7.5c-.2-.2-.2-.5 0-.7l.5-.5c.8-.8 2.1-.8 2.9 0l1.2 1.2c.8.8.8 2.1 0 2.9l-.5.5c-.2.2-.5.2-.7 0l-3.4-3.4zm2.3 4.5c.2.2.2.5 0 .7L12.7 23.4c-.2.2-.4.3-.6.4l-5.7 2.4c-.3.1-.6 0-.7-.3-.1-.1-.1-.3 0-.4L8.1 20c.1-.2.3-.5.4-.6L19.2 8.6c.2-.2.5-.2.7 0l3.5 3.4zM11.5 22.7l-3.9 1.7 1.7-3.9c0-.1.1-.2.2-.2l2.3 2.3c-.1 0-.2.1-.3.1z"></path></svg> <h4 class="c-menu-item-title">Blog Mozilla</h4> <p class="c-menu-item-desc">Zgóńśo wěcej wó Mozilla a problemach, kótarež su nam wažne.</p> </a> </section> </li> </ul> <p class="c-menu-category-link"> <a href="/dsb/about/" data-link-text="More About Mozilla" data-link-position="topnav - who-we-are">Wěcej wó Mozilla</a> </p> </div> </div> </div> </li> <li class="c-menu-category mzp-has-drop-down mzp-js-expandable"> <a class="c-menu-title" href="https://future.mozilla.org/?utm_source=www.mozilla.org&utm_medium=referral&utm_campaign=nav&utm_content=innovation" aria-haspopup="true" aria-controls="c-menu-panel-innovation" data-testid="navigation-link-innovation">Inowacija</a> <div class="c-menu-panel" id="c-menu-panel-innovation" data-testid="navigation-menu-innovation"> <div class="c-menu-panel-container"> <button class="c-menu-button-close" type="button" aria-controls="c-menu-panel-innovation">Meni „Inowacija“ zacyniś</button> <div class="c-menu-panel-content"> <ul class="mzp-l-rows-two"> <li> <section class="c-menu-item mzp-has-icon"> <a class="c-menu-item-link" href="/dsb/firefox/developer/" data-link-text="Firefox Developer Edition" data-link-position="topnav - innovation"> <img loading="lazy" src="https://www.mozilla.org/media/protocol/img/logos/firefox/browser/developer/logo.41d42822c8fb.svg" class="c-menu-item-icon" width="32" height="32" alt=""> <h4 class="c-menu-item-title">Firefox Developer Edition</h4> <p class="c-menu-item-desc">Wobstarajśo se wobglědowak Firefox, jano za wuwijarje napórany.</p> </a> </section> </li> <li> <section class="c-menu-item mzp-has-icon"> <a class="c-menu-item-link" href="https://developer.mozilla.org/?utm_source=www.mozilla.org&utm_medium=referral&utm_campaign=nav&utm_content=innovation" data-link-text="MDN Web Docs" data-link-position="topnav - innovation"> <img loading="lazy" class="c-menu-item-icon" src="https://www.mozilla.org/media/img/nav/icons/icon-mdn-web-docs.9ed01cfe71c7.svg" alt=""> <h4 class="c-menu-item-title">MDN Web Docs</h4> <p class="c-menu-item-desc">Woglědajśo boki z resursami za webwuwijarje.</p> </a> </section> </li> <li> <section class="c-menu-item mzp-has-icon"> <a class="c-menu-item-link" href="https://future.mozilla.org/?utm_source=www.mozilla.org&utm_medium=referral&utm_campaign=nav&utm_content=innovation" data-link-text="Mozilla Innovation Projects" data-link-position="topnav - innovation"> <img loading="lazy" class="c-menu-item-icon" src="https://www.mozilla.org/media/img/nav/icons/icon-innovation-projects.11f189479119.svg" alt=""> <h4 class="c-menu-item-title">Inowaciske projekty Mozilla</h4> <p class="c-menu-item-desc">Discover ways to bring bright ideas to life.</p> </a> </section> </li> <li> <section class="c-menu-item mzp-has-icon"> <a class="c-menu-item-link" href="https://commonvoice.mozilla.org/?utm_source=www.mozilla.org&utm_medium=referral&utm_campaign=nav&utm_content=innovation" data-link-text="Common Voice" data-link-position="topnav - innovation"> <img loading="lazy" class="c-menu-item-icon" src="https://www.mozilla.org/media/img/nav/icons/icon-common-voice.127fa3f5dcb0.svg" alt=""> <h4 class="c-menu-item-title">Common Voice</h4> <p class="c-menu-item-desc">Pósććo swój głos, aby pśichod weba móžo na kuždego słuchaś.</p> </a> </section> </li> </ul> </div> </div> </div> </li> </ul> </nav> </div> </div> </div> </div> </div> <nav class="c-sub-navigation"> <div class="mzp-l-content"> <div class="c-sub-navigation-content"> <h2 class="c-sub-navigation-title"> <a href="/dsb/firefox/" data-link-position="subnav" data-link-text="Firefox"> <img class="c-sub-navigation-icon" src="https://www.mozilla.org/media/protocol/img/logos/firefox/logo.fedb52c912d6.svg" width="24" height="24" alt=""> Firefox </a> </h2> <div class="c-sub-navigation-mobile-toggle is-summary" data-testid="sub-navigation-mobile-toggle"> <span>Meni</span> </div> <ul class="c-sub-navigation-list is-details is-closed" data-testid="sub-navigation-menu"> <li class="c-sub-navigation-item"> <a href="/dsb/firefox/enterprise/" data-link-position="subnav" data-link-text="Enterprise" > Enterprise </a> </li> <li class="c-sub-navigation-item"> <a href="/dsb/firefox/channel/desktop/" data-link-position="subnav" data-link-text="Nightly and Beta" > Nightly a Beta </a> </li> <li class="c-sub-navigation-item"> <a href="/dsb/firefox/all/" data-link-position="subnav" data-link-text="All Languages" > Wšykne rěcy </a> </li> </ul> </div> </div> </nav> <div id="outer-wrapper"> <main> <div class="mzp-l-content mzp-t-content-md t-center"> <div class="mzp-c-logo mzp-t-logo-xl mzp-t-product-developer mzp-l-logo-center"></div> <h1>Firefox Developer Edition</h1> <p>Witajśo k wašonu nowemu nejlubšemu wobglědowekoju. Wobstarajśo se nejnowše funkcije, malsne wugbaśe a wuwijarske rědy, kotrež trjebaśo, aby za wótwórjony web wuwijał.</p> <div id="intro-download" class="download-button download-button-alpha download-button-desktop mzp-c-button-download-container"> <div class="nojs-download"> <div class="download download-dumb"> <p role="heading" class="download-heading"> <span>Firefox</span> Developer Edition — Dolnoserbšćina </p> <ul> <li><a href="https://download.mozilla.org/?product=firefox-devedition-stub&os=win64&lang=dsb" class="download-link mzp-c-button mzp-t-product ga-product-download" data-download-version="win64" data-cta-text="Download Firefox for Windows 64-bit" data-cta-type="firefox">Windows 64-bit</a> </li><li><a href="https://download.mozilla.org/?product=firefox-devedition-msi-latest-ssl&os=win64&lang=dsb" class="download-link mzp-c-button mzp-t-product ga-product-download" data-download-version="win64-msi" data-cta-text="Download Firefox for Windows 64-bit MSI" data-cta-type="firefox">Windows 64-bit MSI</a> </li><li><a href="https://download.mozilla.org/?product=firefox-devedition-latest-ssl&os=win64-aarch64&lang=dsb" class="download-link mzp-c-button mzp-t-product ga-product-download" data-download-version="win64-aarch64" data-cta-text="Download Firefox for Windows ARM64/AArch64" data-cta-type="firefox">Windows ARM64/AArch64</a> </li><li><a href="https://download.mozilla.org/?product=firefox-devedition-stub&os=win&lang=dsb" class="download-link mzp-c-button mzp-t-product ga-product-download" data-download-version="win" data-cta-text="Download Firefox for Windows 32-bit" data-cta-type="firefox">Windows 32-bit</a> </li><li><a href="https://download.mozilla.org/?product=firefox-devedition-msi-latest-ssl&os=win&lang=dsb" class="download-link mzp-c-button mzp-t-product ga-product-download" data-download-version="win-msi" data-cta-text="Download Firefox for Windows 32-bit MSI" data-cta-type="firefox">Windows 32-bit MSI</a> </li><li><a href="https://download.mozilla.org/?product=firefox-devedition-latest-ssl&os=osx&lang=dsb" class="download-link mzp-c-button mzp-t-product ga-product-download" data-download-version="osx" data-cta-text="Download Firefox for macOS" data-cta-type="firefox">macOS</a> </li><li><a href="https://download.mozilla.org/?product=firefox-devedition-latest-ssl&os=linux64&lang=dsb" class="download-link mzp-c-button mzp-t-product ga-product-download" data-download-version="linux64" data-cta-text="Download Firefox for Linux 64-bit" data-cta-type="firefox">Linux 64-bit</a> </li><li><a href="https://download.mozilla.org/?product=firefox-devedition-latest-ssl&os=linux&lang=dsb" class="download-link mzp-c-button mzp-t-product ga-product-download" data-download-version="linux" data-cta-text="Download Firefox for Linux 32-bit" data-cta-type="firefox">Linux 32-bit</a> </li> </ul> </div> </div> <div class="unrecognized-download" data-nosnippet="true"> <p>Waš system nejskerjej njewótpowědujo pominanjam Firefox, ale móžośo jadnu ze slědujucych wersijow wopytowaś:</p> <div class="download download-dumb"> <p role="heading" class="download-heading"> <span>Firefox</span> Developer Edition — Dolnoserbšćina </p> <ul> <li><a href="https://download.mozilla.org/?product=firefox-devedition-stub&os=win64&lang=dsb" class="download-link mzp-c-button mzp-t-product ga-product-download" data-download-version="win64" data-cta-text="Download Firefox for Windows 64-bit" data-cta-type="firefox">Windows 64-bit</a> </li><li><a href="https://download.mozilla.org/?product=firefox-devedition-msi-latest-ssl&os=win64&lang=dsb" class="download-link mzp-c-button mzp-t-product ga-product-download" data-download-version="win64-msi" data-cta-text="Download Firefox for Windows 64-bit MSI" data-cta-type="firefox">Windows 64-bit MSI</a> </li><li><a href="https://download.mozilla.org/?product=firefox-devedition-latest-ssl&os=win64-aarch64&lang=dsb" class="download-link mzp-c-button mzp-t-product ga-product-download" data-download-version="win64-aarch64" data-cta-text="Download Firefox for Windows ARM64/AArch64" data-cta-type="firefox">Windows ARM64/AArch64</a> </li><li><a href="https://download.mozilla.org/?product=firefox-devedition-stub&os=win&lang=dsb" class="download-link mzp-c-button mzp-t-product ga-product-download" data-download-version="win" data-cta-text="Download Firefox for Windows 32-bit" data-cta-type="firefox">Windows 32-bit</a> </li><li><a href="https://download.mozilla.org/?product=firefox-devedition-msi-latest-ssl&os=win&lang=dsb" class="download-link mzp-c-button mzp-t-product ga-product-download" data-download-version="win-msi" data-cta-text="Download Firefox for Windows 32-bit MSI" data-cta-type="firefox">Windows 32-bit MSI</a> </li><li><a href="https://download.mozilla.org/?product=firefox-devedition-latest-ssl&os=osx&lang=dsb" class="download-link mzp-c-button mzp-t-product ga-product-download" data-download-version="osx" data-cta-text="Download Firefox for macOS" data-cta-type="firefox">macOS</a> </li><li><a href="https://download.mozilla.org/?product=firefox-devedition-latest-ssl&os=linux64&lang=dsb" class="download-link mzp-c-button mzp-t-product ga-product-download" data-download-version="linux64" data-cta-text="Download Firefox for Linux 64-bit" data-cta-type="firefox">Linux 64-bit</a> </li><li><a href="https://download.mozilla.org/?product=firefox-devedition-latest-ssl&os=linux&lang=dsb" class="download-link mzp-c-button mzp-t-product ga-product-download" data-download-version="linux" data-cta-text="Download Firefox for Linux 32-bit" data-cta-type="firefox">Linux 32-bit</a> </li> </ul> </div> </div> <div class="fx-unsupported-message win" data-nosnippet="true"> <p><strong>Firefox Developer Edition se na Windows 8.1 a staršych <a href="https://support.mozilla.org/kb/firefox-users-windows-7-8-and-81-moving-extended-support">wěcej njepódpěra</a>.</strong></p> <p>Pšosym ześěgniśo Firefox ESR (wersija za rozšyrjonu pódpěru), aby Firefox wužywał.</p> <div class="download-platform-list"> <p> <a class="mzp-c-button mzp-t-product download-link os_win64 ga-product-download" href="https://download.mozilla.org/?product=firefox-esr115-latest-ssl&os=win64&lang=dsb" data-download-version="win64" data-cta-text="Download Firefox Extended Support Release 64-bit" data-cta-type="firefox"> Firefox ESR ześěgnuś 64-bitowy </a> </p> <p> <a class="mzp-c-button mzp-t-product download-link os_win ga-product-download" href="https://download.mozilla.org/?product=firefox-esr115-latest-ssl&os=win&lang=dsb" data-download-version="win" data-cta-text="Download Firefox Extended Support Release 32-bit" data-cta-type="firefox"> Firefox ESR ześěgnuś 32-bitowy </a> </p> <small class="fx-unsupported-message-all-link"> <a href="/dsb/firefox/all/desktop-esr/"> Drugu wersiju ześěgnuś </a> </small> </div> </div> <div class="fx-unsupported-message mac" data-nosnippet="true"> <p><strong>Firefox Developer Edition se na macOS 10.14 a staršych <a href="https://support.mozilla.org/kb/firefox-users-macos-1012-1013-1014-moving-to-extended-support">wěcej njepódpěra</a>.</strong></p> <p>Pšosym ześěgniśo Firefox ESR (wersija za rozšyrjonu pódpěru), aby Firefox wužywał.</p> <div class="download-platform-list"> <a class="mzp-c-button mzp-t-product download-link ga-product-download" href="https://download.mozilla.org/?product=firefox-esr115-latest-ssl&os=osx&lang=dsb" data-download-version="osx" data-cta-text="Firefox Extended Support Release MacOS" data-cta-type="firefox"> Firefox ESR ześěgnuś </a> </div> </div> <ul class="download-list"> <li class="os_win64"> <a class="download-link button mzp-t-xl mzp-c-button mzp-t-product ga-product-download" id="intro-download-win64" href="https://download.mozilla.org/?product=firefox-devedition-stub&os=win64&lang=dsb" data-download-version="win64" data-cta-text="Download Firefox for Windows 64-bit" data-testid="intro-download-win64" data-cta-type="firefox" data-cta-position="primary cta"> <strong class="download-title"> <span>Firefox</span> Developer Edition </strong> </a> </li> <li class="os_win64-msi"> <a class="download-link button mzp-t-xl mzp-c-button mzp-t-product ga-product-download" id="intro-download-win64-msi" href="https://download.mozilla.org/?product=firefox-devedition-msi-latest-ssl&os=win64&lang=dsb" data-download-version="win64-msi" data-cta-text="Download Firefox for Windows 64-bit MSI" data-testid="intro-download-win64-msi" data-cta-type="firefox" data-cta-position="primary cta"> <strong class="download-title"> <span>Firefox</span> Developer Edition </strong> </a> </li> <li class="os_win64-aarch64"> <a class="download-link button mzp-t-xl mzp-c-button mzp-t-product ga-product-download" id="intro-download-win64-aarch64" href="https://download.mozilla.org/?product=firefox-devedition-latest-ssl&os=win64-aarch64&lang=dsb" data-download-version="win64-aarch64" data-cta-text="Download Firefox for Windows ARM64/AArch64" data-testid="intro-download-win64-aarch64" data-cta-type="firefox" data-cta-position="primary cta"> <strong class="download-title"> <span>Firefox</span> Developer Edition </strong> </a> </li> <li class="os_win"> <a class="download-link button mzp-t-xl mzp-c-button mzp-t-product ga-product-download" id="intro-download-win" href="https://download.mozilla.org/?product=firefox-devedition-stub&os=win&lang=dsb" data-download-version="win" data-cta-text="Download Firefox for Windows 32-bit" data-testid="intro-download-win" data-cta-type="firefox" data-cta-position="primary cta"> <strong class="download-title"> <span>Firefox</span> Developer Edition </strong> </a> </li> <li class="os_win-msi"> <a class="download-link button mzp-t-xl mzp-c-button mzp-t-product ga-product-download" id="intro-download-win-msi" href="https://download.mozilla.org/?product=firefox-devedition-msi-latest-ssl&os=win&lang=dsb" data-download-version="win-msi" data-cta-text="Download Firefox for Windows 32-bit MSI" data-testid="intro-download-win-msi" data-cta-type="firefox" data-cta-position="primary cta"> <strong class="download-title"> <span>Firefox</span> Developer Edition </strong> </a> </li> <li class="os_osx"> <a class="download-link button mzp-t-xl mzp-c-button mzp-t-product ga-product-download" id="intro-download-osx" href="https://download.mozilla.org/?product=firefox-devedition-latest-ssl&os=osx&lang=dsb" data-download-version="osx" data-cta-text="Download Firefox for macOS" data-testid="intro-download-osx" data-cta-type="firefox" data-cta-position="primary cta"> <strong class="download-title"> <span>Firefox</span> Developer Edition </strong> </a> </li> <li class="os_linux64"> <a class="download-link button mzp-t-xl mzp-c-button mzp-t-product ga-product-download" id="intro-download-linux64" href="https://download.mozilla.org/?product=firefox-devedition-latest-ssl&os=linux64&lang=dsb" data-download-version="linux64" data-cta-text="Download Firefox for Linux 64-bit" data-testid="intro-download-linux64" data-cta-type="firefox" data-cta-position="primary cta"> <strong class="download-title"> Za 64-bitowy Linux ześěgnuś </strong> </a> </li> <li class="os_linux"> <a class="download-link button mzp-t-xl mzp-c-button mzp-t-product ga-product-download" id="intro-download-linux" href="https://download.mozilla.org/?product=firefox-devedition-latest-ssl&os=linux&lang=dsb" data-download-version="linux" data-cta-text="Download Firefox for Linux 32-bit" data-testid="intro-download-linux" data-cta-type="firefox" data-cta-position="primary cta"> <strong class="download-title"> Za 32-bitowy Linux ześěgnuś </strong> </a> </li> </ul> <small class="fx-privacy-link mzp-c-button-download-privacy-link"> <a href="/dsb/privacy/firefox/"> Pokazki priwatnosći Firefox </a> </small> </div> <p class="show-linux">Using Debian, Ubuntu or any Debian-based distribution?<br> You can set up our <a href="https://support.mozilla.org/products/firefox/install-and-update-firefox#w_install-firefox-deb-package-for-debian-based-distributions" rel="external noopener" data-cta-text="Get help with your installation">APT repository instead</a>.</p> <p class="intro-feedback-note"> Firefox Developer Edition Mozilla awtomatiski informacije sćelo. <a href="/dsb/privacy/firefox/#pre-release" class="more">Dalšne informacije</a> </p> </div> <section id="fordevs" class="mzp-c-split mzp-t-split-nospace"> <div class="mzp-c-split-container"> <div class="mzp-c-split-media"> <img src="https://www.mozilla.org/media/img/firefox/developer/stylo-engine.44d72db41ee9.svg" alt="" class="mzp-c-split-media-asset"> </div> <div class="mzp-c-split-body"> <h2 class="mzp-u-title-xs">Firefox Developer Edition</h2> <h3 class="mzp-u-title-sm">Wobglědowak za wuwijarje</h3> <p>Wšykne nejnowše wuwijaŕske rědy w betawersiji pśidatnje k funkcijam ako wěcejsmužkowy konsolowy editor a WebSocket Inspector.</p> <p><strong>Separatny profil a separatna sćažka</strong>, tak móžośo jen z kóńcneju wersiju abo Beta Firefox wuwjasć.</p> <p>Nastajenja, kotrež su <strong>na webwuwiwarjow wusměrjone</strong>: Pytanje zmólkow wobglědowaka a znazdala stej pó standarźe zmóžnjonej, rowno tak kaž śamna drastwa a tłocašk za wuwijaŕsku symbolowu rědku.</p> </div> </div> </section> <section class="t-highlights mzp-l-content mzp-l-card-half mzp-t-content-xl"> <section class="mzp-c-card mzp-c-card-medium mzp-has-aspect-16-9 " id="inactive"> <a class="mzp-c-card-block-link" href="https://hacks.mozilla.org/2019/10/firefox-70-a-bountiful-release-for-all/#developertools" data-link-text="Pioneers of The Open Web" data-link-position="card" data-card-tag="Nowe rědy" rel="external" > <div class="mzp-c-card-media-wrapper"><img loading="lazy" src="https://www.mozilla.org/media/img/firefox/developer/hero-inactive-css.40a2e0b8ddb1.png" srcset="https://www.mozilla.org/media/img/firefox/developer/hero-inactive-css-high-res.87cdf3a5bf40.png 2x" alt="Inaktiwny CSS" class="mzp-c-card-image" height="280" width="560"></div> <div class="mzp-c-card-content"> <div class="mzp-c-card-tag">Nowe rědy</div> <h2 class="mzp-c-card-title"><span>Inaktiwny CSS</span></h2> <p class="mzp-c-card-desc">Firefox DevTools CSS-deklaracije šerje, kótarež na boku žeden efekt njamaju. Gaž kursor myški pśez symbol Info gibaśo, buźośo wužytnu powěsć wiźeś, cogodla CSS se njenałožujo, inkluziwnje pokazku, kak móžośo problem rozwězaś.</p> <p class="mzp-c-card-cta"><span class="mzp-c-card-cta-text">Dalšne informacije</span></p> </div> </a> </section> <section class="mzp-c-card mzp-c-card-medium mzp-has-aspect-16-9 " id="devtools"> <a class="mzp-c-card-block-link" href="https://mozilladevelopers.github.io/playground/debugger/" data-link-text="Pioneers of The Open Web" data-link-position="card" data-card-tag="Nowe rědy" rel="external" > <div class="mzp-c-card-media-wrapper"><img loading="lazy" src="https://www.mozilla.org/media/img/firefox/developer/hero-debugger-ani.7e04d95e76ea.gif" alt="Firefox DevTools" class="mzp-c-card-image" height="280" width="560"></div> <div class="mzp-c-card-content"> <div class="mzp-c-card-tag">Nowe rědy</div> <h2 class="mzp-c-card-title"><span>Firefox DevTools</span></h2> <p class="mzp-c-card-desc">Nowe Firefox DevTools su mócne, fleksibelne a nejlěpše, dajo se pśeměniś. K nim teke program za pytanje za zmólkami słuša, nrjlěpše joho družyny, kótaryž móžo z někotarymi wobglědowakami wobchadaś a jo se w React a Redux wuwił.</p> <p class="mzp-c-card-cta"><span class="mzp-c-card-cta-text">Dalšne informacije</span></p> </div> </a> </section> <section class="mzp-c-card mzp-c-card-medium mzp-has-aspect-16-9 " id="cssgrid"> <a class="mzp-c-card-block-link" href="https://mozilladevelopers.github.io/playground/css-grid/" data-link-text="Pioneers of The Open Web" data-link-position="card" data-card-tag="Inowatiwne funkcije" rel="external" > <div class="mzp-c-card-media-wrapper"><img loading="lazy" src="https://www.mozilla.org/media/img/firefox/developer/hero-cssgrid-ani.c0a7ace9dbf7.gif" alt="Głowne CSS-kśidno" class="mzp-c-card-image" height="280" width="560"></div> <div class="mzp-c-card-content"> <div class="mzp-c-card-tag">Inowatiwne funkcije</div> <h2 class="mzp-c-card-title"><span>Głowne CSS-kśidno</span></h2> <p class="mzp-c-card-desc">Firefox jo jadnučki wobglědowak z rědami, kótarež jo za wuwijanje a wugótowanje z CSS-kśidnom wuwity. Toś te rědy wam zmóžnjaju, kśidno wizualizěrowaś, zwězane mjenja wobcerkow pokazaś, transformacije na kśidnje w pśeglěźe pokazaś a wjele wěcej.</p> <p class="mzp-c-card-cta"><span class="mzp-c-card-cta-text">Dalšne informacije</span></p> </div> </a> </section> <section class="mzp-c-card mzp-c-card-medium mzp-has-aspect-16-9 " id="fonts"> <a class="mzp-c-card-block-link" href="https://firefox-source-docs.mozilla.org/devtools-user/page_inspector/how_to/edit_fonts/" data-link-text="Pioneers of The Open Web" data-link-position="card" data-card-tag="Malsnjejše informacije" rel="external" > <div class="mzp-c-card-media-wrapper"><img loading="lazy" src="https://www.mozilla.org/media/img/firefox/developer/hero-fonts.0e574b98aa63.gif" alt="Pólo pismow" class="mzp-c-card-image" height="280" width="560"></div> <div class="mzp-c-card-content"> <div class="mzp-c-card-tag">Malsnjejše informacije</div> <h2 class="mzp-c-card-title"><span>Pólo pismow</span></h2> <p class="mzp-c-card-desc">Nowe pólo pismow w Firefox DevTools zmóžnja wuwijarjam malsny pśistup ku wšym informacijam, kótarež wó wužytych pismach w elemenśe trjebaju. Wopśimujo teke gódnotne informacije w žrědle, waze, stil pisma a wěcej.</p> <p class="mzp-c-card-cta"><span class="mzp-c-card-cta-text">Dalšne informacije</span></p> </div> </a> </section> </section> <section class="t-features"> <div class="mzp-c-section-heading"> <h2 class="mzp-u-title-3xs"><span>Wugótowaś. Programěrowaś. Testowaś. Pólěpšyś.</span></h2> <h3 class="mzp-u-title-sm">Wuwijajśo a perfekcioněrujśo swójo sedło<br> z Firefox DevTools</h3> </div> <div class="mzp-l-content mzp-l-columns mzp-t-columns-three mzp-t-content-xl"> <div class="mzp-c-picto"> <img loading="lazy" src="https://www.mozilla.org/media/img/firefox/developer/feature-inspector.846d4472fc48.svg" alt="" class="mzp-c-picto-image" width="202" height="124"> <h3 class="mzp-c-picto-heading">Inspektor</h3> <div class="mzp-c-picto-body"> <p>Analyzěrujśo a pólěpšćo žrědłowy kod, aby na pikselu dokradne wugótowanja wuwijał.</p> <p> <a href="https://firefox-source-docs.mozilla.org/devtools-user/page_inspector/" class="mzp-c-cta-link" rel="external"> Zgóńśo wěcej wó inspektorje bokow </a> </p> </div> </div> <div class="mzp-c-picto"> <img loading="lazy" src="https://www.mozilla.org/media/img/firefox/developer/feature-console.bb8ff8c59fb7.svg" alt="" class="mzp-c-picto-image" width="182" height="124"> <h3 class="mzp-c-picto-heading">Konsola</h3> <div class="mzp-c-picto-body"> <p>Slědujśo problemam z CSS, JavaScriptom, wěstotu a seśu.</p> <p> <a href="https://firefox-source-docs.mozilla.org/devtools-user/web_console/" class="mzp-c-cta-link" rel="external"> Zgóńśo wěcej wó webkonsoli </a> </p> </div> </div> <div class="mzp-c-picto"> <img loading="lazy" src="https://www.mozilla.org/media/img/firefox/developer/feature-debugger.e2ff80ae359d.svg" alt="" class="mzp-c-picto-image" width="202" height="110"> <h3 class="mzp-c-picto-heading">Debugger</h3> <div class="mzp-c-picto-body"> <p>Mócny JavaScriptowy debugger z pódpěru za waš framework.</p> <p> <a href="https://firefox-source-docs.mozilla.org/devtools-user/debugger/" class="mzp-c-cta-link" rel="external"> Zgóńśo wěcej wó pytaku zmólkow JavaScript </a> </p> </div> </div> <div class="mzp-c-picto"> <img loading="lazy" src="https://www.mozilla.org/media/img/firefox/developer/feature-network.0f066e5fa9cc.svg" alt="" class="mzp-c-picto-image" width="232" height="124"> <h3 class="mzp-c-picto-heading">Seś</h3> <div class="mzp-c-picto-body"> <p>Doglědujśo seśowe napšašowanja, kótarež mógu wašo sedło spómałšyś abo blokěrowaś.</p> <p> <a href="https://firefox-source-docs.mozilla.org/devtools-user/network_monitor/" class="mzp-c-cta-link" rel="external"> Zgóńśo wěcej wó seśowem monitorje </a> </p> </div> </div> <div class="mzp-c-picto"> <img loading="lazy" src="https://www.mozilla.org/media/img/firefox/developer/feature-storage.c05881595de9.svg" alt="" class="mzp-c-picto-image" width="134" height="124"> <h3 class="mzp-c-picto-heading">Składowakowy wobcerk</h3> <div class="mzp-c-picto-body"> <p>Pśidajśo, změńśo a wówónoźćo cache, cookieje, datowe banki a pósejźeńske daty.</p> <p> <a href="https://firefox-source-docs.mozilla.org/devtools-user/storage_inspector/" class="mzp-c-cta-link" rel="external"> Zgóńśo wěcej wó naglěźe za składowak </a> </p> </div> </div> <div class="mzp-c-picto"> <img loading="lazy" src="https://www.mozilla.org/media/img/firefox/developer/feature-responsive-mode.7b90657adbdb.svg" alt="" class="mzp-c-picto-image" width="194" height="124"> <h3 class="mzp-c-picto-heading">Modus pśiměrjonego designa</h3> <div class="mzp-c-picto-body"> <p>Testujśoe sedła na emulěrowanych rědach w swójom wobglědowaku.</p> <p> <a href="https://firefox-source-docs.mozilla.org/devtools-user/responsive_design_mode/" class="mzp-c-cta-link" rel="external"> Zgóńśo wěcej wó naglěźe pśiměrjonego webdesigna </a> </p> </div> </div> <div class="mzp-c-picto"> <img loading="lazy" src="https://www.mozilla.org/media/img/firefox/developer/feature-visual-editing.5d222d53b196.svg" alt="" class="mzp-c-picto-image" width="112" height="124"> <h3 class="mzp-c-picto-heading">Wizuelne wobźěłowanje</h3> <div class="mzp-c-picto-body"> <p>Pólěpšćo animacije, wusměrjenje a wótkłony.</p> <p> <a href="https://hacks.mozilla.org/2015/11/developer-edition-44-creative-tools-and-more" class="mzp-c-cta-link" rel="external"> Zgóńśo wěcej wó wizuelnem wobźěłowanju </a> </p> </div> </div> <div class="mzp-c-picto"> <img loading="lazy" src="https://www.mozilla.org/media/img/firefox/developer/feature-performance.98d6fd75f6d5.svg" alt="" class="mzp-c-picto-image" width="202" height="124"> <h3 class="mzp-c-picto-heading">Wugbaśe</h3> <div class="mzp-c-picto-body"> <p>Wótwónoźćo flašowe šyjki, starajśo se wó tšužojte procese a optiměrujśo wugbaśe.</p> <p> <a href="https://firefox-source-docs.mozilla.org/devtools-user/performance/" class="mzp-c-cta-link" rel="external"> Zgóńśo wěcej wó wugbaśowych rědach </a> </p> </div> </div> <div class="mzp-c-picto"> <img loading="lazy" src="https://www.mozilla.org/media/img/firefox/developer/feature-memory.63c9ef1c51c7.svg" alt="" class="mzp-c-picto-image" width="116" height="124"> <h3 class="mzp-c-picto-heading">Skład</h3> <div class="mzp-c-picto-body"> <p>Namakajśo składowe źěry, aby wašo nałoženje zgładka běžało.</p> <p> <a href="https://firefox-source-docs.mozilla.org/devtools-user/memory/" class="mzp-c-cta-link" rel="external"> Zgóńśo wěcej wó składowaych rědach </a> </p> </div> </div> <div class="mzp-c-picto"> <img loading="lazy" src="https://www.mozilla.org/media/img/firefox/developer/feature-style-editor.29b8f89c644e.svg" alt="" class="mzp-c-picto-image" width="116" height="124"> <h3 class="mzp-c-picto-heading">Stilowy editor</h3> <div class="mzp-c-picto-body"> <p>Wobźěłujśo a zastojśo wše swóje CSS-pśedłogi w swójom wobglědowaku.</p> <p> <a href="https://firefox-source-docs.mozilla.org/devtools-user/style_editor/" class="mzp-c-cta-link" rel="external"> Zgóńśo wěcej wó stilowem editoru </a> </p> </div> </div> </div> </section> <aside> <section id="newsletter" class="mzp-c-split mzp-l-split-reversed"> <div class="mzp-c-split-container"> <div class="mzp-c-split-media mzp-l-split-h-center"> <img loading="lazy" src="https://www.mozilla.org/media/img/firefox/developer/mail.0f885d7b3a03.svg" alt="" width="200"> </div> <div class="mzp-c-split-body"> <form id="newsletter-form" class="mzp-c-newsletter-form" action="https://basket.mozilla.org/news/subscribe/" method="post" data-testid="newsletter-form"> <div hidden> <div id="id_newsletters"><div> <label for="id_newsletters_0"><input type="checkbox" name="newsletters" value="mozilla-and-you" id="id_newsletters_0" checked> Firefox</label> </div> </div> </div> <input type="hidden" name="source_url" value="https://www.mozilla.org/dsb/firefox/developer/"> <header class="mzp-c-newsletter-header"> <h3 class="mzp-c-newsletter-title">Wobstarajśo se nowosći Firefox</h3> </header> <fieldset class="mzp-c-newsletter-content"> <div class="mzp-c-form-errors hidden" id="newsletter-errors" data-testid="newsletter-error-message"> <ul class="mzp-u-list-styled"> <li class="error-email-invalid hidden"> Pšosym zapódajśo płaśiwu e-mailowu adresu </li> <li class="error-select-country hidden"> Wubjeŕśo pšosym kraj abo region </li> <li class="error-select-language hidden"> Pšosym wubjeŕśo rěc </li> <li class="error-newsletter-checkbox hidden"> Pšosym wužywajśo nanejmjenjej jadno z nastajenjow powěsćowego lista. </li> <li class="error-privacy-policy hidden"> Musyśo do pokazkow priwatnosći zwóliś. </li> <li class="error-try-again-later hidden"> Bóžko jo problem z našym systemom nastał. Pšosym wopytajśo pózdźej hyšći raz! </li> </ul> </div> <label for="id_email">Waša e-mailowa adresa:</label> <input type="email" name="email" required data-testid="newsletter-email-input" maxlength="320" placeholder="wašomě@example.com" class="mzp-js-email-field" id="id_email"> <div id="newsletter-details" class="mzp-c-newsletter-details"> <div class="mzp-c-newsletter-details-inner"> <label for="id_country">Kraj abo region wubraś:</label> <p><select name="country" required="required" aria-required="true" data-testid="newsletter-country-select" id="id_country"> <option value="" selected>Kraj abo region wubraś</option> <option value="af">Afganistan</option> <option value="qz">Akrotiri</option> <option value="al">Albańska</option> <option value="dz">Algeriska</option> <option value="as">Amerikańska Samoa</option> <option value="vi">Amerikańske knježniske kupy</option> <option value="ad">Andorra</option> <option value="ao">Angola</option> <option value="ai">Anguilla</option> <option value="aq">Antarktika</option> <option value="ag">Antigua a Barbuda</option> <option value="ar">Argentinska</option> <option value="am">Armeńska</option> <option value="aw">Aruba</option> <option value="xu">Atol Johnston</option> <option value="xl">Atol Palmyra</option> <option value="au">Awstralska</option> <option value="at">Awstriska</option> <option value="az">Azerbajdžan</option> <option value="bs">Bahamy</option> <option value="bh">Bahrain</option> <option value="bd">Bangladeš</option> <option value="bb">Barbados</option> <option value="qs">Bassas da India</option> <option value="be">Belgiska</option> <option value="bz">Belize</option> <option value="bj">Benin</option> <option value="bm">Bermudy</option> <option value="bt">Bhutan</option> <option value="bo">Boliwiska</option> <option value="ba">Bosniska a Hercegowina</option> <option value="bw">Botswana</option> <option value="bv">Bouvetska kupa</option> <option value="br">Brazilska</option> <option value="vg">Britiske knježniske kupy</option> <option value="io">Britiski indiskooceaniski teritorium</option> <option value="bn">Brunei</option> <option value="bg">Bulgaŕska</option> <option value="bf">Burkina Faso</option> <option value="mm">Burma</option> <option value="bi">Burundi</option> <option value="by">Běłoruska</option> <option value="me">Carnogórska, Montenegro</option> <option value="cf">Centralnoafrikańska republika</option> <option value="cl">Chilska</option> <option value="cn">Chinska</option> <option value="hr">Chorwatska</option> <option value="ck">Cookowe kupy</option> <option value="cw">Curaçao</option> <option value="cy">Cypern</option> <option value="dk">Dańska</option> <option value="xd">Dhekelia</option> <option value="dg">Diego Garcia</option> <option value="dm">Dominika</option> <option value="do">Dominikańska republika</option> <option value="dj">Džibuti</option> <option value="eg">Egyptojska</option> <option value="ec">Ekuador</option> <option value="gq">Ekwatorialna Guineja</option> <option value="sv">El Salvador</option> <option value="er">Eritreja</option> <option value="ee">Estniska</option> <option value="sz">Eswatini</option> <option value="et">Etiopiska</option> <option value="fk">Falklandske kupy (Malwiny)</option> <option value="fm">Federatiwne staty Mikroneziskeje</option> <option value="fo">Ferejske kupy</option> <option value="fj">Fidźi</option> <option value="ph">Filipiny</option> <option value="fi">Finska</option> <option value="fr">Francojska</option> <option value="gf">Francojska Guyana</option> <option value="pf">Francojska Polyneziska</option> <option value="tf">Francojske pódpołdnjowe a antarktiske teritorije</option> <option value="ga">Gabun</option> <option value="gm">Gambija</option> <option value="xg">Gazaska smuga</option> <option value="ge">Georgiska</option> <option value="gh">Ghana</option> <option value="gi">Gibraltar</option> <option value="gd">Grenada</option> <option value="gr">Grichiska</option> <option value="gl">Grönlandska</option> <option value="gp">Guadeloupe</option> <option value="gu">Guam</option> <option value="gt">Guatemala</option> <option value="gg">Guernsey</option> <option value="gn">Guineja</option> <option value="gw">Guineja-Bissau</option> <option value="gy">Guyana</option> <option value="cx">Gódowna kupa</option> <option value="ht">Haiti</option> <option value="hn">Honduras</option> <option value="hk">Hong Kong</option> <option value="hu">Hungorska</option> <option value="in">Indiska</option> <option value="id">Indoneziska</option> <option value="iq">Irak</option> <option value="ir">Iran</option> <option value="ie">Irska</option> <option value="is">Islandska</option> <option value="im">Isle of Man, kupa Man</option> <option value="il">Israel</option> <option value="it">Italska</option> <option value="jm">Jamaika</option> <option value="xj">Jan Mayen</option> <option value="jp">Japańska</option> <option value="ye">Jemen</option> <option value="je">Jersey</option> <option value="jo">Jordańska, Jordaniska</option> <option value="ky">Kajmanske kupy</option> <option value="kh">Kambodža</option> <option value="cm">Kamerun</option> <option value="ca">Kanada</option> <option value="cv">Kapwerdiske kupy</option> <option value="bq">Karibiska Nižozemska</option> <option value="qa">Katar</option> <option value="kz">Kazachska</option> <option value="ke">Kenija</option> <option value="kg">Kirgiziska</option> <option value="ki">Kiribati</option> <option value="cc">Kokoske (Keeling) kupy</option> <option value="co">Kolumbiska</option> <option value="km">Komory</option> <option value="cg">Kongo (Brazzaville)</option> <option value="cd">Kongo (Kinshasa)</option> <option value="xk">Kosowo</option> <option value="cr">Kostarika</option> <option value="cu">Kuba</option> <option value="xb">Kupa Baker</option> <option value="cp">Kupa Clipperton</option> <option value="xe">Kupa Europa</option> <option value="hm">Kupa Heard a kupy McDonald</option> <option value="xh">Kupa Howland</option> <option value="xq">Kupa Jarvis</option> <option value="qu">Kupa Juan de Nova</option> <option value="xv">Kupa Navassa</option> <option value="nf">Kupa Norfolk</option> <option value="xt">Kupa Tromelin</option> <option value="qw">Kupa Wake</option> <option value="xa">Kupy Ashmore a Cartier</option> <option value="qx">Kupy Glorioso</option> <option value="qm">Kupy Midway</option> <option value="pn">Kupy Pitcairn</option> <option value="xs">Kupy Spratly</option> <option value="tc">Kupy Turks a Caicos</option> <option value="xc">Kupy koralowego mórja</option> <option value="kw">Kuwait</option> <option value="la">Laos</option> <option value="ls">Lesotho</option> <option value="lv">Letiska</option> <option value="lb">Libanon</option> <option value="lr">Liberia</option> <option value="ly">Libyska</option> <option value="li">Liechtenstein</option> <option value="lt">Litawska</option> <option value="lu">Luxemburgska</option> <option value="mg">Madagaskar</option> <option value="mo">Makao</option> <option value="mw">Malawi</option> <option value="my">Malayzija</option> <option value="mv">Malediwy</option> <option value="ml">Mali</option> <option value="mt">Malta</option> <option value="ma">Marokko</option> <option value="mq">Martinique</option> <option value="mh">Maršalske kupy</option> <option value="mr">Mauretańska</option> <option value="mu">Mauritius</option> <option value="yt">Mayotte</option> <option value="mx">Mexiko</option> <option value="md">Moldawska</option> <option value="mc">Monaco</option> <option value="mn">Mongolska</option> <option value="ms">Montserrat</option> <option value="mz">Mosambik</option> <option value="na">Namibija</option> <option value="nr">Nauru</option> <option value="np">Nepal</option> <option value="ne">Niger</option> <option value="ng">Nigerija</option> <option value="ni">Nikaragua</option> <option value="de">Nimska</option> <option value="nu">Niue</option> <option value="nl">Nižozemska</option> <option value="no">Norwegska</option> <option value="nc">Nowa Kaledonija</option> <option value="nz">Nowoseelandska</option> <option value="om">Oman</option> <option value="pk">Pakistan</option> <option value="pw">Palau</option> <option value="pa">Panama</option> <option value="pg">Papua-Neuguinea</option> <option value="xp">Paracelowe kupy</option> <option value="py">Paraguay</option> <option value="pe">Peru</option> <option value="pt">Portugalska</option> <option value="pr">Puerto Riko</option> <option value="za">Pódpołdnjowa Afrika</option> <option value="gs">Pódpołdnjowa Georgiska a kupy South Sandwich</option> <option value="kr">Pódpołdnjowa Koreja</option> <option value="ss">Pódpołdnjowy Sudan</option> <option value="kp">Pódpołnocna Koreja</option> <option value="mk">Pódpołnocna Makedońska</option> <option value="mp">Pódpołnocne Mariańske kupy</option> <option value="eh">Pódwjacorna Sahara</option> <option value="xw">Pódwjacorny brjog Jordana</option> <option value="tl">Pódzajtšny Timor</option> <option value="pl">Pólska</option> <option value="xm">Riff Kingman</option> <option value="rw">Ruanda</option> <option value="ro">Rumuńska</option> <option value="ru">Ruska</option> <option value="re">Réunion</option> <option value="bl">Saint Barthélemy</option> <option value="sh">Saint Helena, Ascension a Tristan da Cunha</option> <option value="kn">Saint Kitts a Nevis</option> <option value="lc">Saint Lucia</option> <option value="mf">Saint Martin</option> <option value="pm">Saint Pierre a Miquelon</option> <option value="vc">Saint Vincent a Grenadiny</option> <option value="zm">Sambija</option> <option value="ws">Samoa</option> <option value="sm">San Marino</option> <option value="st">Sao Tome a Principe</option> <option value="sa">Saudi-Arabska</option> <option value="sn">Senegal</option> <option value="rs">Serbiska</option> <option value="sc">Seychelle</option> <option value="sl">Sierra Leone</option> <option value="zw">Simbabwe</option> <option value="sg">Singapur</option> <option value="sx">Sint Maarten</option> <option value="sb">Solomonske kupy</option> <option value="so">Somalija</option> <option value="lk">Sri Lanka</option> <option value="sd">Sudan</option> <option value="sr">Surinam</option> <option value="xr">Svalbard</option> <option value="sy">Syriska</option> <option value="ci">Słonokóstna pśibrjóg</option> <option value="sk">Słowakska</option> <option value="si">Słowjeńska</option> <option value="tj">Tadźikistan</option> <option value="tw">Taiwan</option> <option value="tz">Tansanija</option> <option value="th">Thailandska</option> <option value="tg">Togo</option> <option value="tk">Tokelau</option> <option value="to">Tonga</option> <option value="tt">Trinidad a Tobago</option> <option value="tn">Tuneziska</option> <option value="tm">Turkmeńska</option> <option value="tr">Turkojska</option> <option value="tv">Tuwalu</option> <option value="ug">Uganda</option> <option value="ua">Ukraina</option> <option value="uy">Uruguay</option> <option value="uz">Uzbekistan</option> <option value="vu">Vanuatu</option> <option value="va">Vatikańske město</option> <option value="ve">Venezuela</option> <option value="vn">Vietnam</option> <option value="wf">Wallis a Futuna</option> <option value="ae">Zjadnośone arabske emiraty</option> <option value="gb">Zjadnośone kralojstwo</option> <option value="us">Zjadnośone staty</option> <option value="td">Čad</option> <option value="cz">Česka</option> <option value="es">Špańska</option> <option value="se">Šwedska</option> <option value="ch">Šwicaŕska</option> </select></p> <label for="id_lang">Rěc wubraś:</label> <p><select name="lang" required="required" aria-required="true" id="id_lang"> <option value="" selected>K dispoziciji stojece rěcy</option> <option value="id">Bahasa Indonesia</option> <option value="de">Deutsch</option> <option value="en">English</option> <option value="es">Español</option> <option value="fr">Français</option> <option value="pl">Polski</option> <option value="pt">Português</option> <option value="ru">Русский</option> <option value="zh-TW">正體中文</option> </select></p> <p> <label for="privacy" class="mzp-u-inline"> <input type="checkbox" id="privacy" name="privacy" required aria-required="true" data-testid="newsletter-privacy-checkbox"> Som z tym wobjadny, kak Mozilla wobchada pó <a href="/dsb/privacy/websites/">toś tych pšawidłach priwatnosći</a> z mójimi informacijami </label> </p> </div> </div> <p class="mzp-c-form-submit"> <button type="submit" id="newsletter-submit" class="mzp-c-button mzp-c-button mzp-t-product mzp-t-lg" data-cta-text="Newsletter Sign Up" data-testid="newsletter-submit-button"> Registrěrujśo se něnto </button> <span class="mzp-c-fieldnote"> Pósćelomy wam jano informacije nastupajucy Firefox. </span> </p> </fieldset> </form> <div id="newsletter-thanks" class="mzp-c-newsletter-thanks hidden" data-testid="newsletter-thanks-message"> <h3>Wjeliki źěk!</h3> <p>Jolic hyšći njejsćo abonement powěsćowego lista Mozilla wobkšuśił, musyśo to něnto cyniś. Pšosym glědajśo do dochada posta abo papjernika za mejlku wót nas.</p> </div> </div> </div> </section> </aside> <section class="mzp-t-dark t-engage"> <div class="mzp-l-content mzp-l-columns mzp-t-columns-two mzp-t-picto-side"> <div class="mzp-c-picto"> <img loading="lazy" src="https://www.mozilla.org/media/img/firefox/developer/icon-speak.7724cf991f8f.svg" alt="" class="mzp-c-picto-image" width="64"> <h3 class="mzp-c-picto-heading">Dajśo nam swójo měnjenje k wěsći</h3> <div class="mzp-c-picto-body"> <p>Wašo měnjenje nam pomaga se pólěpšyś. Dajśo nam k wěsći, kak móžomy wobglědowak a wuwijarske rědy pólěpšyś.</p> <p><a class="mzp-c-cta-link" href="https://discourse.mozilla.org/c/devtools">Sobu diskutěrowaś</a></p> </div> </div> <div class="mzp-c-picto"> <img loading="lazy" src="https://www.mozilla.org/media/img/firefox/developer/icon-involved.e300841086cb.svg" alt="" class="mzp-c-picto-image" width="64"> <h3 class="mzp-c-picto-heading">Sobu cyniś</h3> <div class="mzp-c-picto-body"> <p>Pomagajśo slědny njewótwisny wobglědowak pólěpšowaś. Pišćo kod, pórěźćo zmólki, wuwijajśo dodanki a wěcej.</p> <p><a class="mzp-c-cta-link" href="https://firefox-dev.tools/">Něnto zachopiś</a></p> </div> </div> </div> <section class="mzp-c-split mzp-l-split-reversed mzp-l-split-center-on-sm-md"> <div class="mzp-c-split-container"> <div class="mzp-c-split-body"> <h2>Ześěgniśo wobglědowak Firefox wuwity za wuwijarje</h2> <div id="footer-download" class="download-button download-button-alpha download-button-desktop mzp-c-button-download-container"> <div class="nojs-download"> <div class="download download-dumb"> <p role="heading" class="download-heading"> <span>Firefox</span> Developer Edition — Dolnoserbšćina </p> <ul> <li><a href="https://download.mozilla.org/?product=firefox-devedition-stub&os=win64&lang=dsb" class="download-link mzp-c-button mzp-t-product ga-product-download" data-download-version="win64" data-cta-text="Download Firefox for Windows 64-bit" data-cta-type="firefox">Windows 64-bit</a> </li><li><a href="https://download.mozilla.org/?product=firefox-devedition-msi-latest-ssl&os=win64&lang=dsb" class="download-link mzp-c-button mzp-t-product ga-product-download" data-download-version="win64-msi" data-cta-text="Download Firefox for Windows 64-bit MSI" data-cta-type="firefox">Windows 64-bit MSI</a> </li><li><a href="https://download.mozilla.org/?product=firefox-devedition-latest-ssl&os=win64-aarch64&lang=dsb" class="download-link mzp-c-button mzp-t-product ga-product-download" data-download-version="win64-aarch64" data-cta-text="Download Firefox for Windows ARM64/AArch64" data-cta-type="firefox">Windows ARM64/AArch64</a> </li><li><a href="https://download.mozilla.org/?product=firefox-devedition-stub&os=win&lang=dsb" class="download-link mzp-c-button mzp-t-product ga-product-download" data-download-version="win" data-cta-text="Download Firefox for Windows 32-bit" data-cta-type="firefox">Windows 32-bit</a> </li><li><a href="https://download.mozilla.org/?product=firefox-devedition-msi-latest-ssl&os=win&lang=dsb" class="download-link mzp-c-button mzp-t-product ga-product-download" data-download-version="win-msi" data-cta-text="Download Firefox for Windows 32-bit MSI" data-cta-type="firefox">Windows 32-bit MSI</a> </li><li><a href="https://download.mozilla.org/?product=firefox-devedition-latest-ssl&os=osx&lang=dsb" class="download-link mzp-c-button mzp-t-product ga-product-download" data-download-version="osx" data-cta-text="Download Firefox for macOS" data-cta-type="firefox">macOS</a> </li><li><a href="https://download.mozilla.org/?product=firefox-devedition-latest-ssl&os=linux64&lang=dsb" class="download-link mzp-c-button mzp-t-product ga-product-download" data-download-version="linux64" data-cta-text="Download Firefox for Linux 64-bit" data-cta-type="firefox">Linux 64-bit</a> </li><li><a href="https://download.mozilla.org/?product=firefox-devedition-latest-ssl&os=linux&lang=dsb" class="download-link mzp-c-button mzp-t-product ga-product-download" data-download-version="linux" data-cta-text="Download Firefox for Linux 32-bit" data-cta-type="firefox">Linux 32-bit</a> </li> </ul> </div> </div> <div class="unrecognized-download" data-nosnippet="true"> <p>Waš system nejskerjej njewótpowědujo pominanjam Firefox, ale móžośo jadnu ze slědujucych wersijow wopytowaś:</p> <div class="download download-dumb"> <p role="heading" class="download-heading"> <span>Firefox</span> Developer Edition — Dolnoserbšćina </p> <ul> <li><a href="https://download.mozilla.org/?product=firefox-devedition-stub&os=win64&lang=dsb" class="download-link mzp-c-button mzp-t-product ga-product-download" data-download-version="win64" data-cta-text="Download Firefox for Windows 64-bit" data-cta-type="firefox">Windows 64-bit</a> </li><li><a href="https://download.mozilla.org/?product=firefox-devedition-msi-latest-ssl&os=win64&lang=dsb" class="download-link mzp-c-button mzp-t-product ga-product-download" data-download-version="win64-msi" data-cta-text="Download Firefox for Windows 64-bit MSI" data-cta-type="firefox">Windows 64-bit MSI</a> </li><li><a href="https://download.mozilla.org/?product=firefox-devedition-latest-ssl&os=win64-aarch64&lang=dsb" class="download-link mzp-c-button mzp-t-product ga-product-download" data-download-version="win64-aarch64" data-cta-text="Download Firefox for Windows ARM64/AArch64" data-cta-type="firefox">Windows ARM64/AArch64</a> </li><li><a href="https://download.mozilla.org/?product=firefox-devedition-stub&os=win&lang=dsb" class="download-link mzp-c-button mzp-t-product ga-product-download" data-download-version="win" data-cta-text="Download Firefox for Windows 32-bit" data-cta-type="firefox">Windows 32-bit</a> </li><li><a href="https://download.mozilla.org/?product=firefox-devedition-msi-latest-ssl&os=win&lang=dsb" class="download-link mzp-c-button mzp-t-product ga-product-download" data-download-version="win-msi" data-cta-text="Download Firefox for Windows 32-bit MSI" data-cta-type="firefox">Windows 32-bit MSI</a> </li><li><a href="https://download.mozilla.org/?product=firefox-devedition-latest-ssl&os=osx&lang=dsb" class="download-link mzp-c-button mzp-t-product ga-product-download" data-download-version="osx" data-cta-text="Download Firefox for macOS" data-cta-type="firefox">macOS</a> </li><li><a href="https://download.mozilla.org/?product=firefox-devedition-latest-ssl&os=linux64&lang=dsb" class="download-link mzp-c-button mzp-t-product ga-product-download" data-download-version="linux64" data-cta-text="Download Firefox for Linux 64-bit" data-cta-type="firefox">Linux 64-bit</a> </li><li><a href="https://download.mozilla.org/?product=firefox-devedition-latest-ssl&os=linux&lang=dsb" class="download-link mzp-c-button mzp-t-product ga-product-download" data-download-version="linux" data-cta-text="Download Firefox for Linux 32-bit" data-cta-type="firefox">Linux 32-bit</a> </li> </ul> </div> </div> <div class="fx-unsupported-message win" data-nosnippet="true"> <p><strong>Firefox Developer Edition se na Windows 8.1 a staršych <a href="https://support.mozilla.org/kb/firefox-users-windows-7-8-and-81-moving-extended-support">wěcej njepódpěra</a>.</strong></p> <p>Pšosym ześěgniśo Firefox ESR (wersija za rozšyrjonu pódpěru), aby Firefox wužywał.</p> <div class="download-platform-list"> <p> <a class="mzp-c-button mzp-t-product download-link os_win64 ga-product-download" href="https://download.mozilla.org/?product=firefox-esr115-latest-ssl&os=win64&lang=dsb" data-download-version="win64" data-cta-text="Download Firefox Extended Support Release 64-bit" data-cta-type="firefox"> Firefox ESR ześěgnuś 64-bitowy </a> </p> <p> <a class="mzp-c-button mzp-t-product download-link os_win ga-product-download" href="https://download.mozilla.org/?product=firefox-esr115-latest-ssl&os=win&lang=dsb" data-download-version="win" data-cta-text="Download Firefox Extended Support Release 32-bit" data-cta-type="firefox"> Firefox ESR ześěgnuś 32-bitowy </a> </p> <small class="fx-unsupported-message-all-link"> <a href="/dsb/firefox/all/desktop-esr/"> Drugu wersiju ześěgnuś </a> </small> </div> </div> <div class="fx-unsupported-message mac" data-nosnippet="true"> <p><strong>Firefox Developer Edition se na macOS 10.14 a staršych <a href="https://support.mozilla.org/kb/firefox-users-macos-1012-1013-1014-moving-to-extended-support">wěcej njepódpěra</a>.</strong></p> <p>Pšosym ześěgniśo Firefox ESR (wersija za rozšyrjonu pódpěru), aby Firefox wužywał.</p> <div class="download-platform-list"> <a class="mzp-c-button mzp-t-product download-link ga-product-download" href="https://download.mozilla.org/?product=firefox-esr115-latest-ssl&os=osx&lang=dsb" data-download-version="osx" data-cta-text="Firefox Extended Support Release MacOS" data-cta-type="firefox"> Firefox ESR ześěgnuś </a> </div> </div> <ul class="download-list"> <li class="os_win64"> <a class="download-link button mzp-t-xl mzp-c-button mzp-t-product ga-product-download" id="footer-download-win64" href="https://download.mozilla.org/?product=firefox-devedition-stub&os=win64&lang=dsb" data-download-version="win64" data-cta-text="Download Firefox for Windows 64-bit" data-testid="footer-download-win64" data-cta-type="firefox" data-cta-position="footer cta"> <strong class="download-title"> <span>Firefox</span> Developer Edition </strong> </a> </li> <li class="os_win64-msi"> <a class="download-link button mzp-t-xl mzp-c-button mzp-t-product ga-product-download" id="footer-download-win64-msi" href="https://download.mozilla.org/?product=firefox-devedition-msi-latest-ssl&os=win64&lang=dsb" data-download-version="win64-msi" data-cta-text="Download Firefox for Windows 64-bit MSI" data-testid="footer-download-win64-msi" data-cta-type="firefox" data-cta-position="footer cta"> <strong class="download-title"> <span>Firefox</span> Developer Edition </strong> </a> </li> <li class="os_win64-aarch64"> <a class="download-link button mzp-t-xl mzp-c-button mzp-t-product ga-product-download" id="footer-download-win64-aarch64" href="https://download.mozilla.org/?product=firefox-devedition-latest-ssl&os=win64-aarch64&lang=dsb" data-download-version="win64-aarch64" data-cta-text="Download Firefox for Windows ARM64/AArch64" data-testid="footer-download-win64-aarch64" data-cta-type="firefox" data-cta-position="footer cta"> <strong class="download-title"> <span>Firefox</span> Developer Edition </strong> </a> </li> <li class="os_win"> <a class="download-link button mzp-t-xl mzp-c-button mzp-t-product ga-product-download" id="footer-download-win" href="https://download.mozilla.org/?product=firefox-devedition-stub&os=win&lang=dsb" data-download-version="win" data-cta-text="Download Firefox for Windows 32-bit" data-testid="footer-download-win" data-cta-type="firefox" data-cta-position="footer cta"> <strong class="download-title"> <span>Firefox</span> Developer Edition </strong> </a> </li> <li class="os_win-msi"> <a class="download-link button mzp-t-xl mzp-c-button mzp-t-product ga-product-download" id="footer-download-win-msi" href="https://download.mozilla.org/?product=firefox-devedition-msi-latest-ssl&os=win&lang=dsb" data-download-version="win-msi" data-cta-text="Download Firefox for Windows 32-bit MSI" data-testid="footer-download-win-msi" data-cta-type="firefox" data-cta-position="footer cta"> <strong class="download-title"> <span>Firefox</span> Developer Edition </strong> </a> </li> <li class="os_osx"> <a class="download-link button mzp-t-xl mzp-c-button mzp-t-product ga-product-download" id="footer-download-osx" href="https://download.mozilla.org/?product=firefox-devedition-latest-ssl&os=osx&lang=dsb" data-download-version="osx" data-cta-text="Download Firefox for macOS" data-testid="footer-download-osx" data-cta-type="firefox" data-cta-position="footer cta"> <strong class="download-title"> <span>Firefox</span> Developer Edition </strong> </a> </li> <li class="os_linux64"> <a class="download-link button mzp-t-xl mzp-c-button mzp-t-product ga-product-download" id="footer-download-linux64" href="https://download.mozilla.org/?product=firefox-devedition-latest-ssl&os=linux64&lang=dsb" data-download-version="linux64" data-cta-text="Download Firefox for Linux 64-bit" data-testid="footer-download-linux64" data-cta-type="firefox" data-cta-position="footer cta"> <strong class="download-title"> Za 64-bitowy Linux ześěgnuś </strong> </a> </li> <li class="os_linux"> <a class="download-link button mzp-t-xl mzp-c-button mzp-t-product ga-product-download" id="footer-download-linux" href="https://download.mozilla.org/?product=firefox-devedition-latest-ssl&os=linux&lang=dsb" data-download-version="linux" data-cta-text="Download Firefox for Linux 32-bit" data-testid="footer-download-linux" data-cta-type="firefox" data-cta-position="footer cta"> <strong class="download-title"> Za 32-bitowy Linux ześěgnuś </strong> </a> </li> </ul> <small class="fx-privacy-link mzp-c-button-download-privacy-link"> <a href="/dsb/privacy/firefox/"> Pokazki priwatnosći Firefox </a> </small> </div> </div> <div class="mzp-c-split-media mzp-l-split-h-center"> <img src="https://www.mozilla.org/media/img/firefox/developer/browser.a6cc14615f6f.png" srcset="https://www.mozilla.org/media/img/firefox/developer/browser-high-res.233175f07965.png 2x" alt="" class="mzp-c-split-media-asset"> </div> </div> </section> </section> </main> <footer class="mzp-c-footer " id="colophon" role="contentinfo"> <div class="mzp-l-content"> <nav class="mzp-c-footer-primary"> <div class="mzp-c-footer-primary-logo"> <a href="/dsb/" data-link-position="footer" data-link-text="Mozilla">Mozilla</a> </div> <div class="mzp-c-footer-sections"> <section class="mzp-c-footer-section"> <h2 class="mzp-c-footer-heading" data-testid="footer-heading-company"> Pśedewześe </h2> <ul class="mzp-c-footer-list" data-testid="footer-list-company"> <li><a href="/dsb/about/manifesto/" data-link-position="footer" data-link-text="Mozilla Manifesto">Manifest 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