{"id":172767,"date":"2026-05-20T12:55:54","date_gmt":"2026-05-20T10:55:58","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/reliz-firefox-151"},"modified":"2026-05-20T12:55:54","modified_gmt":"2026-05-20T10:55:58","slug":"reliz-firefox-151","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sk\/blog\/news\/reliz-firefox-151","title":{"rendered":"Vydanie Firefox 151","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Vydanie webov\u00e9ho prehliada\u010da Firefox 151 a aktualiz\u00e1cie predch\u00e1dzaj\u00facich stabiln\u00fdch verzi\u00ed s dlhodobou podporou &#8212; 140.11.0 a 115.36.0. Sk\u00fa\u0161obn\u00e1 verzia Firefox 152 bude \u010doskoro dostupn\u00e1 v beta teste, jej vydanie je pl\u00e1novan\u00e9 na 16. j\u00fana.     <\/p>\n<p>Hlavn\u00e9 novinky v prehliada\u010di Firefox 151 (1, 2, 3, 4):  <\/p>\n<ul>\n<li class=\"l\"> Aktualizoval sa dizajn str\u00e1nky, ktor\u00e1 sa zobrazuje pri otv\u00e1ran\u00ed novej karty (logo je presunut\u00e9 do stredu, vyh\u013ead\u00e1vac\u00ed panel je posunut\u00fd ni\u017e\u0161ie, pridan\u00fd pozadie, ktor\u00e9 si m\u00f4\u017eete zmeni\u0165 v nastaveniach). Nov\u00fd dizajn je optimalizovan\u00fd pre integr\u00e1ciu na str\u00e1nku nov\u00fdch funkci\u00ed (napr\u00edklad widgety a zlep\u0161en\u00e9 spracovanie odkazov), ktor\u00fdch zahrnutie sa o\u010dak\u00e1va v nasleduj\u00facom vydan\u00ed.     <img decoding=\"async\" alt=\"Vydanie Firefox 151\" src=\"\/wp-content\/uploads\/2026\/05\/8f59b64122a7ba1fd2a6cc17cb9d49b1.png\" style=\"display:block;margin: 0 auto\" \/>  <img decoding=\"async\" alt=\"Vydanie Firefox 151\" src=\"\/wp-content\/uploads\/2026\/05\/2c4de70f4f3e00e2651eca493dfe5a1b.png\" style=\"display:block;margin: 0 auto\" \/>\n<li class=\"l\"> V re\u017eime s\u00fakromn\u00e9ho prehliadania bola implementovan\u00e1 nov\u00e1 tla\u010didlo &#171;Koniec s\u00fakromnej rel\u00e1cie&#187; (ikona oh\u0148a napravo od adresn\u00e9ho riadku), prostredn\u00edctvom ktor\u00e9ho m\u00f4\u017eete okam\u017eite vymaza\u0165 v\u0161etky \u00fadaje aktu\u00e1lnej s\u00fakromnej rel\u00e1cie bez zatvorenia okna prehliada\u010da (otvoren\u00e9 webov\u00e9 str\u00e1nky v s\u00fakromnom re\u017eime s\u00fa uzavret\u00e9 a rel\u00e1cia zost\u00e1va pr\u00e1zdna).      <img decoding=\"async\" alt=\"Vydanie Firefox 151\" src=\"\/wp-content\/uploads\/2026\/05\/839093f843517f59192891d5ea5f5499.png\" style=\"display:block;margin: 0 auto\" \/>\n<li class=\"l\"> Vo vstavanom prehliada\u010di PDF bola implementovan\u00e1 funkcia zl\u00fa\u010denia nieko\u013ek\u00fdch str\u00e1nok v dokumente.    <img decoding=\"async\" alt=\"Vydanie Firefox 151\" src=\"\/wp-content\/uploads\/2026\/05\/f01bfa53444770ab473395ddbb39dadf.png\" style=\"display:block;margin: 0 auto\" \/>\n<li class=\"l\"> Vstavan\u00e9 rozhranie na preklad z jedn\u00e9ho jazyka do druh\u00e9ho je teraz mo\u017en\u00e9 vyvola\u0165 cez sekciu &#171;Viac n\u00e1strojov&#187; v hlavn\u00fdch ponuk\u00e1ch.  <img decoding=\"async\" alt=\"Vydanie Firefox 151\" src=\"\/wp-content\/uploads\/2026\/05\/f4bcb85f18b4529306080cbc1e4db1eb.png\" style=\"display:block;margin: 0 auto\" \/>\n<li class=\"l\"> Vyh\u013ead\u00e1vac\u00ed panel v konfigura\u010dnom rozhran\u00ed (about:preferences) bol roz\u0161\u00edren\u00fd a teraz zaber\u00e1 cel\u00fa dostupn\u00fa \u0161\u00edrku.\n<li class=\"l\"> V zostav\u00e1ch pre Linux bola implementovan\u00e1 podpora z\u00e1lohovania profilov, ktor\u00e1 umo\u017e\u0148uje ulo\u017ei\u0165 vybran\u00fd profil do s\u00faboru, ktor\u00fd potom m\u00f4\u017eete pou\u017ei\u0165 na obnovenie nastaven\u00ed na inom syst\u00e9me. Predt\u00fdm bola t\u00e1to funkcia dostupn\u00e1 len vo Windows.    <img decoding=\"async\" alt=\"Vydanie Firefox 151\" src=\"\/wp-content\/uploads\/2026\/05\/60a33f1f99dee3abd3e92de657f4dc04.png\" style=\"display:block;margin: 0 auto\" \/>\n<li class=\"l\"> Pri pres\u00favan\u00ed adres\u00e1ra s profilom Firefox do in\u00fdch \u010dast\u00ed s\u00faborov\u00e9ho syst\u00e9mu alebo na syst\u00e9my s in\u00fdmi opera\u010dn\u00fdmi syst\u00e9mami je zabezpe\u010den\u00e9 obnovenie nain\u0161talovan\u00fdch doplnkov a t\u00e9m.\n<li class=\"l\"> Zosilnila sa ochrana pred skrytou identifik\u00e1ciou pou\u017e\u00edvate\u013ea (Fingerprinting Protection), ktor\u00e1 sa uplat\u0148uje pri zapnut\u00ed \u0161tandardnej ochrany pred sledovan\u00edm (ETP, Enhanced Tracking Protection =&gt; Standard). Zaznamen\u00e1va sa, \u017ee zaveden\u00e9 zmeny umo\u017enili v priemere o 14% (49% pre macOS) zn\u00ed\u017ei\u0165 podiel pou\u017e\u00edvate\u013eov identifikovan\u00fdch pomocou klasick\u00fdch met\u00f3d skrytej identifik\u00e1cie v porovnan\u00ed s predch\u00e1dzaj\u00facou ochranou.\n<li class=\"l\"> Do integrovan\u00e9ho bezplatn\u00e9ho VPN slu\u017eby Firefox VPN bola pridan\u00e1 mo\u017enos\u0165 v\u00fdberu krajiny, ktor\u00e1 sa pou\u017e\u00edva <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/sk\/vpn\/\" title=\"VPN servera\" data-wpil-keyword-link=\"linked\">VPN servera<\/a>. Slu\u017eba umo\u017e\u0148uje pr\u00edstup na webov\u00e9 str\u00e1nky nie priamo, ale cez medzizn\u00e1mske proxy-<a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/sk\/server\/\" title=\"servery\" data-wpil-keyword-link=\"linked\">servery<\/a> v r\u00f4znych krajin\u00e1ch, ktor\u00e9 skr\u00fdvaj\u00fa IP adresu pou\u017e\u00edvate\u013ea. Je mo\u017en\u00e9 povoli\u0165 VPN iba pre vybran\u00e9 str\u00e1nky. Na aktiv\u00e1ciu VPN je potrebn\u00e1 registr\u00e1cia \u00fa\u010dtu u spolo\u010dnosti Mozilla. V VPN slu\u017ebe plat\u00ed obmedzenie na 50 gigabajtov d\u00e1tov\u00e9ho prenosu za mesiac.\n<li class=\"l\"> Pri po\u017eiadavke webovej aplik\u00e1cie na pr\u00edstup k \u00fadajom o polohe na platforme Windows sa teraz zoh\u013ead\u0148uj\u00fa syst\u00e9mov\u00e9 nastavenia poskytovania tak\u00e9hoto pr\u00edstupu.\n<li class=\"l\"> Bola pridan\u00e1 mo\u017enos\u0165 pou\u017e\u00edvania API Web Serial na ovl\u00e1danie mikrokontrol\u00e9rov pripojen\u00fdch cez s\u00e9riov\u00fd port. Napr\u00edklad po potvrden\u00ed opr\u00e1vnen\u00ed je mo\u017en\u00e9 z webovej aplik\u00e1cie programova\u0165 ESP \u010dipy, dosky Raspberry Pi Picos, 3D tla\u010diarne a zariadenia s CNC. API Web Serial sa tie\u017e d\u00e1 pou\u017e\u00edva\u0165 v prehliada\u010dov\u00fdch doplnkoch, ale nie v kontexte moz-extension.\n<li class=\"l\"> Pre v\u0161etk\u00fdch pou\u017e\u00edvate\u013eov je zahrnut\u00e9 pou\u017eitie \u0161pecifik\u00e1cie LNA (Local Network Access) na obmedzenie pr\u00edstupov k lok\u00e1lnemu syst\u00e9mu (loopback, 127.0.0.0\/8) alebo vn\u00fatornej sieti (192.168.0.0\/16, 10.0.0.0\/8 at\u010f.) pri interakcii s verejn\u00fdmi webov\u00fdmi str\u00e1nkami. Na pr\u00edstup k intern\u00fdm zdrojom mus\u00ed pou\u017e\u00edvate\u013e poskytn\u00fa\u0165 webovej aplik\u00e1cii \u0161peci\u00e1lne opr\u00e1vnenia, preto\u017ee podobn\u00e1 aktivita sa zneu\u017e\u00edva na vykon\u00e1vanie CSRF \u00fatokov na smerova\u010de, pr\u00edstupov\u00e9 body, tla\u010diarne, firemn\u00e9 webov\u00e9 rozhrania a in\u00e9 zariadenia a slu\u017eby, ktor\u00e9 prij\u00edmaj\u00fa po\u017eiadavky iba z lok\u00e1lnej siete. Okrem toho m\u00f4\u017ee skenovanie intern\u00fdch zdrojov by\u0165 pou\u017eit\u00e9 na nepriame identifikovanie alebo zber inform\u00e1ci\u00ed o lok\u00e1lnej sieti. Predt\u00fdm platila tak\u00e1to ochrana iba pri zapnut\u00ed re\u017eimu zv\u00fd\u0161enej ochrany pred sledovan\u00edm pohybu (ETP, Enhanced Tracking Protection =&gt; Strict).\n<li class=\"l\"> Bolo implementovan\u00e9 API Fullscreen Keyboard Lock, ktor\u00e9 prid\u00e1va do met\u00f3dy requestFullscreen argument keyboardLock, ktor\u00fd umo\u017e\u0148uje celoobrazov\u00fdm webov\u00fdm aplik\u00e1ci\u00e1m zachyti\u0165 spracovanie niektor\u00fdch kl\u00e1ves a kl\u00e1vesov\u00fdch kombin\u00e1ci\u00ed, napr\u00edklad je mo\u017en\u00e9 zachyti\u0165 stla\u010denie kl\u00e1vesy Esc (v tomto pr\u00edpade na opustenie celoobrazov\u00e9ho re\u017eimu je potrebn\u00e9 nie stla\u010denie, ale podr\u017eanie Esc).\n<li class=\"l\"> Vylep\u0161en\u00e9 vykres\u013eovanie elementov s absol\u00fatnym umiestnen\u00edm v r\u00e1mci viackol\u00f3nkov\u00fdch blokov alebo pri tla\u010di.\n<li class=\"l\"> V pravidl\u00e1ch &#171;@container&#187; je povolen\u00e9 s\u00fa\u010dasn\u00e9 vymenovanie viacer\u00fdch podmienok podobne ako v pr\u00edpade medi\u00e1lnych dopytov.\n<li class=\"l\"> V r\u00e1mci pravidiel @container je povolen\u00e9 pou\u017e\u00edvanie funkcie style() na kontrolu vypo\u010d\u00edtan\u00fdch hodn\u00f4t CSS vlastnost\u00ed kontajnera.\n<li class=\"l\"> Pridan\u00e1 vlastnos\u0165 CSSContainerRule.conditions, ktor\u00e1 obsahuje zoznam v\u0161etk\u00fdch podmienok kontajnerov\u00e9ho dopytu. Star\u00e9 vlastnosti CSSContainerRule.containerName a CSSContainerRule.containerQuery s\u00fa ozna\u010den\u00e9 ako zastaran\u00e9.\n<li class=\"l\"> Zmenen\u00e9 spr\u00e1vanie ukotvovania v CSS (CSS Anchor Positioning). Vlastnos\u0165 position-anchor teraz \u0161tandardne m\u00e1 hodnotu &#171;normal&#187;, a pri pou\u017eit\u00ed vlastnosti position-area sa implicitn\u00e9 kotvy pou\u017e\u00edvaj\u00fa automaticky. Vyskakovacie okn\u00e1 (popovers) pou\u017e\u00edvaj\u00face anchor() alebo anchor-center teraz vy\u017eaduj\u00fa explicitn\u00e9 ur\u010denie vlastnosti &#171;position-anchor: auto&#187;.\n<li class=\"l\"> Pridan\u00e1 podpora API Document Picture-in-Picture na otvorenie ak\u00e9hoko\u013evek HTML obsahu v re\u017eime &#171;obr\u00e1zok v obr\u00e1zku&#187;, nielen videa. Na rozdiel od otvorenia okna pomocou volania window.open() sa okn\u00e1 vytvoren\u00e9 prostredn\u00edctvom nov\u00e9ho API v\u017edy zobrazuj\u00fa nad ostatn\u00fdmi oknami, nezostan\u00fa po zavret\u00ed zdrojov\u00e9ho okna, nepodporuj\u00fa navig\u00e1ciu a nem\u00f4\u017eu v\u00fdslovne ur\u010dova\u0165 poz\u00edciu zobrazenia.\n<li class=\"l\"> V API Permissions je zabezpe\u010den\u00e9 spr\u00e1vne spracovanie do\u010dasn\u00fdch opr\u00e1vnen\u00ed poskytnut\u00fdch webu.\n<li class=\"l\"> Poskytla sa mo\u017enos\u0165 pou\u017eitia deklarat\u00edvnej syntaxe na definovanie toho, ako s\u00fa elementy rozde\u013eovan\u00e9 do slotov v r\u00e1mci Shadow DOM.\n<li class=\"l\"> Vo Firefoxe pre Android bola pridan\u00e1 podpora r\u00fdchlej navig\u00e1cie medzi kartami pomocou vertik\u00e1lneho pos\u00favacieho gesta v oblasti panela. Do konfigur\u00e1tora, analogicky s desktopovou verziou, bol pridan\u00fd prep\u00edna\u010d na vypnutie v\u0161etk\u00fdch funkci\u00ed vyu\u017e\u00edvaj\u00facich AI, ako aj boli implementovan\u00e9 nastavenia na selekt\u00edvne zap\u00ednanie jednotliv\u00fdch AI funkci\u00ed.    <img decoding=\"async\" alt=\"Vydanie Firefox 151\" src=\"\/wp-content\/uploads\/2026\/05\/68f973c7312289f16f4ea1daecca665d.png\" style=\"display:block;margin: 0 auto\" \/>                  <\/ul>\n<p>Okrem noviniek a opr\u00e1v ch\u00fdb vo Firefoxe 151 bolo odstr\u00e1nen\u00fdch 154 zranite\u013enost\u00ed (65 pod CVE-2026-8973, 54 pod CVE-2026-8974 a 7 pod CVE-2026-8975). 146 zranite\u013enost\u00ed bolo sp\u00f4soben\u00fdch probl\u00e9mami s pam\u00e4\u0165ou, ako s\u00fa prete\u010denia bufferov a pr\u00edstup k u\u017e uvo\u013enen\u00fdm oblastiam pam\u00e4te. Potenci\u00e1lne tieto probl\u00e9my m\u00f4\u017eu vies\u0165 k vykonaniu k\u00f3du \u00fato\u010dn\u00edka pri otvoren\u00ed \u0161peci\u00e1lne form\u00e1tovan\u00fdch str\u00e1nok.       <\/p>\n<p>V no\u010dn\u00fdch zostav\u00e1ch Firefox za\u010dalo testovanie prepracovan\u00e9ho rozhrania konfigur\u00e1tora, v ktorom s\u00fa roz\u0161\u00edren\u00e9 prostriedky na vyh\u013ead\u00e1vanie nastaven\u00ed, vylep\u0161en\u00e1 navig\u00e1cia a aktualizovan\u00e9 \u0161t\u00edtky a popisy nastaven\u00ed.<br \/>\n<br \/>Zdroj: <a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=65481\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0421\u043e\u0441\u0442\u043e\u044f\u043b\u0441\u044f \u0440\u0435\u043b\u0438\u0437 web-\u0431\u0440\u0430\u0443\u0437\u0435\u0440\u0430 Firefox 151 \u0438 \u0441\u0444\u043e\u0440\u043c\u0438\u0440\u043e\u0432\u0430\u043d\u044b \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f \u043f\u0440\u043e\u0448\u043b\u044b\u0445 \u0432\u0435\u0442\u043e\u043a \u0441 \u0434\u043b\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u043c \u0441\u0440\u043e\u043a\u043e\u043c \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0438 &#8212; 140.11.0 \u0438 115.36.0. \u041d\u0430 \u0441\u0442\u0430\u0434\u0438\u044e \u0431\u0435\u0442\u0430-\u0442\u0435\u0441\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0432 \u0431\u043b\u0438\u0436\u0430\u0439\u0448\u0435\u0435 \u0432\u0440\u0435\u043c\u044f \u0431\u0443\u0434\u0435\u0442 \u043f\u0435\u0440\u0435\u0432\u0435\u0434\u0435\u043d\u0430 \u0432\u0435\u0442\u043a\u0430 Firefox 152, \u0440\u0435\u043b\u0438\u0437 \u043a\u043e\u0442\u043e\u0440\u043e\u0439 \u043d\u0430\u043c\u0435\u0447\u0435\u043d \u043d\u0430 16 \u0438\u044e\u043d\u044f. \u041e\u0441\u043d\u043e\u0432\u043d\u044b\u0435 \u043d\u043e\u0432\u0448\u0435\u0441\u0442\u0432\u0430 \u0432 Firefox 151 (1, 2, 3, 4): \u041e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u043e \u043e\u0444\u043e\u0440\u043c\u043b\u0435\u043d\u0438\u0435 \u0441\u0442\u0440\u0430\u043d\u0438\u0446\u044b, \u043f\u043e\u043a\u0430\u0437\u044b\u0432\u0430\u0435\u043c\u043e\u0439 \u043f\u0440\u0438 \u043e\u0442\u043a\u0440\u044b\u0442\u0438\u0438 \u043d\u043e\u0432\u043e\u0439 \u0432\u043a\u043b\u0430\u0434\u043a\u0438 (\u043b\u043e\u0433\u043e\u0442\u0438\u043f \u043f\u0435\u0440\u0435\u043c\u0435\u0449\u0451\u043d \u0432 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":8,"featured_media":172768,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-172767","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.4 - 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