{"id":148014,"date":"2025-11-11T23:11:55","date_gmt":"2025-11-11T21:11:59","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/reliz-firefox-145-s-rasshirennoj-zashhitoj-ot-skrytoj-identifikaczii"},"modified":"2026-02-26T20:20:26","modified_gmt":"2026-02-26T18:20:26","slug":"reliz-firefox-145-s-rasshirennoj-zashhitoj-ot-skrytoj-identifikaczii","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/reliz-firefox-145-s-rasshirennoj-zashhitoj-ot-skrytoj-identifikaczii","title":{"rendered":"Verze Firefox 145 s roz\u0161\u00ed\u0159enou ochranou proti skryt\u00e9 identifikaci","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Byl vyd\u00e1n webov\u00fd prohl\u00ed\u017ee\u010d Firefox 145 a byly vytvo\u0159eny aktualizace p\u0159edchoz\u00edch verz\u00ed s dlouhou podporou \u2014 140.5.0 a 115.30.0. Na beta testov\u00e1n\u00ed p\u0159e\u0161la v\u011btev Firefox 146, jej\u00ed\u017e vyd\u00e1n\u00ed je napl\u00e1nov\u00e1no na 9. prosince.     <\/p>\n<p>Hlavn\u00ed novinky ve Firefoxu 145 (1, 2, 3):  <\/p>\n<ul>\n<li class=\"l\"> Podpora 32-bitov\u00fdch Linuxov\u00fdch syst\u00e9m\u016f byla ukon\u010dena. Je zaznamen\u00e1no, \u017ee \u00fadr\u017eba Firefoxu na 32-bitov\u00fdch platform\u00e1ch se st\u00e1v\u00e1 st\u00e1le slo\u017eit\u011bj\u0161\u00ed a nespolehliv\u011bj\u0161\u00ed, zat\u00edmco podpora pro 32-bitov\u00e9 sestavy ji\u017e byla ukon\u010dena ve v\u011bt\u0161in\u011b distribuc\u00ed Linuxu. U\u017eivatel\u016fm 32-bitov\u00fdch Linuxov\u00fdch distribuc\u00ed se doporu\u010duje p\u0159ej\u00edt na 64-bitov\u00e9 opera\u010dn\u00ed syst\u00e9my. Pro ty, kte\u0159\u00ed nemohou rychle aktualizovat distribuci, lze pou\u017e\u00edt ESR-v\u011btev Firefoxu 140, pro kterou budou aktualizace s opravami zranitelnost\u00ed k dispozici alespo\u0148 do z\u00e1\u0159\u00ed p\u0159\u00ed\u0161t\u00edho roku.\n<li class=\"l\"> Bylo zes\u00edleno zaoblen\u00ed tla\u010d\u00edtek, z\u00e1lo\u017eek, adresn\u00edho \u0159\u00e1dku a vstupn\u00edch pol\u00ed.    <center><img decoding=\"async\" alt=\"Verze Firefox 145 s roz\u0161\u00ed\u0159enou ochranou proti skryt\u00e9 identifikaci\" src=\"\/wp-content\/uploads\/2025\/11\/f8481c4a5662cf52bfc1144b45fc0c41.png\" style=\"display:block;margin: 0 auto;\" \/><\/center>\n<li class=\"l\"> Ve vestav\u011bn\u00e9m prohl\u00ed\u017ee\u010di PDF byla implementov\u00e1na funkce pro p\u0159id\u00e1v\u00e1n\u00ed, \u00fapravu a odstran\u011bn\u00ed koment\u00e1\u0159\u016f\/pov\u011b\u0159en\u00ed. Pro navigaci a prohl\u00ed\u017een\u00ed existuj\u00edc\u00edch koment\u00e1\u0159\u016f byla p\u0159id\u00e1na samostatn\u00e1 bo\u010dn\u00ed li\u0161ta. P\u0159i p\u0159id\u00e1v\u00e1n\u00ed koment\u00e1\u0159\u016f je mo\u017en\u00e9 vyb\u00edrat barvu pro jejich zv\u00fdrazn\u011bn\u00ed na pozad\u00ed.    <center><img decoding=\"async\" alt=\"Verze Firefox 145 s roz\u0161\u00ed\u0159enou ochranou proti skryt\u00e9 identifikaci\" src=\"\/wp-content\/uploads\/2025\/11\/ff0fe2c17b1b4e8152585569cfed6557.png\" style=\"display:block;margin: 0 auto;\" \/><\/center>\n<li class=\"l\"> P\u0159i najet\u00ed kurzoru na ikonu sbalen\u00e9 skupiny z\u00e1lo\u017eek se zobraz\u00ed seznam z\u00e1lo\u017eek ve skupin\u011b, pomoc\u00ed kter\u00e9ho lze rychle otev\u0159\u00edt pot\u0159ebnou z\u00e1lo\u017eku bez p\u0159edchoz\u00edho rozbalen\u00ed cel\u00e9 skupiny.    <center><img decoding=\"async\" alt=\"Verze Firefox 145 s roz\u0161\u00ed\u0159enou ochranou proti skryt\u00e9 identifikaci\" src=\"\/wp-content\/uploads\/2025\/11\/68cb5cc73934f52d595008af37e253b0.png\" style=\"display:block;margin: 0 auto;\" \/><\/center>\n<li class=\"l\"> Byla p\u0159id\u00e1na mo\u017enost spravovat ulo\u017een\u00e1 hesla p\u0159\u00edmo z bo\u010dn\u00ed li\u0161ty bez nutnosti otev\u0159en\u00ed spr\u00e1vce hesel v nov\u00e9m okn\u011b nebo z\u00e1lo\u017ece.    <center><img decoding=\"async\" alt=\"Verze Firefox 145 s roz\u0161\u00ed\u0159enou ochranou proti skryt\u00e9 identifikaci\" src=\"\/wp-content\/uploads\/2025\/11\/ec841f3c2f36f6cf632ffd777cc3a7e1.png\" style=\"display:block;margin: 0 auto;\" \/><\/center>\n<li class=\"l\"> Byla navr\u017eena nov\u00e1 sb\u00edrka pozad\u00ed pro str\u00e1nku nov\u00e9ho z\u00e1lo\u017eky, dostupn\u00e1 ve verz\u00edch pro sv\u011btl\u00fd a tmav\u00fd re\u017eim.    <center><img decoding=\"async\" alt=\"Verze Firefox 145 s roz\u0161\u00ed\u0159enou ochranou proti skryt\u00e9 identifikaci\" src=\"\/wp-content\/uploads\/2025\/11\/89cf301a482c7076a25503c86612322c.png\" style=\"display:block;margin: 0 auto;\" \/><\/center>\n<li class=\"l\"> Do nastaven\u00ed z\u00e1lo\u017eek byla p\u0159id\u00e1na mo\u017enost um\u00edstit z\u00e1lo\u017eku vytvo\u0159enou p\u0159i otev\u00edr\u00e1n\u00ed odkaz\u016f z extern\u00edch aplikac\u00ed vedle aktu\u00e1ln\u011b aktivn\u00ed z\u00e1lo\u017eky, nam\u00edsto na konec seznamu z\u00e1lo\u017eek.    <center><img decoding=\"async\" alt=\"Verze Firefox 145 s roz\u0161\u00ed\u0159enou ochranou proti skryt\u00e9 identifikaci\" src=\"\/wp-content\/uploads\/2025\/11\/ffe401755902b265a67bb91b94305258.png\" style=\"display:block;margin: 0 auto;\" \/><\/center>\n<li class=\"l\"> Do kontextov\u00e9ho menu byla p\u0159id\u00e1na polo\u017eka \u201eCopy Link to Highlight\u201c, kter\u00e1 umo\u017e\u0148uje vytvo\u0159it odkaz na \u00faryvek textu zv\u00fdrazn\u011bn\u00fd na str\u00e1nce. Pro p\u0159echod na vybran\u00fd text se pou\u017e\u00edvaj\u00ed odkazy typu \u201ehttps:\/\/www.example.com#:~:text=maske\u201c.\n<li class=\"l\"> Byly roz\u0161\u00ed\u0159eny mo\u017enosti re\u017eimu na ochranu proti skryt\u00e9 identifikaci u\u017eivatele (Fingerprinting Protection), kter\u00fd se aplikuje p\u0159i aktivaci pos\u00edlen\u00e9 ochrany proti sledov\u00e1n\u00ed pohybu (ETP, Enhanced Tracking Protection =&gt; Strict) nebo p\u0159i otev\u00edr\u00e1n\u00ed str\u00e1nek v re\u017eimu soukrom\u00e9ho prohl\u00ed\u017een\u00ed. Zaznamen\u00e1v\u00e1 se, \u017ee proveden\u00e9 zm\u011bny umo\u017enily t\u00e9m\u011b\u0159 zdvojn\u00e1sobit \u00fa\u010dinnost metod skryt\u00e9 identifikace ve srovn\u00e1n\u00ed s d\u0159\u00edve dostupnou ochranou.\n<p>Pro pos\u00edlen\u00ed ochrany bylo zaji\u0161t\u011bno vracen\u00ed konstantn\u00edch hodnot pro parametry, kter\u00e9 mohou b\u00fdt pou\u017eity jako dodate\u010dn\u00fd znak pro identifikaci, a tak\u00e9 byl omezen p\u0159\u00edstup k informac\u00edm o za\u0159\u00edzen\u00ed, jako je po\u010det dotyk\u016f podporovan\u00fdch touchpadem a po\u010det procesorov\u00fdch jader. Bylo implementov\u00e1no substituov\u00e1n\u00ed n\u00e1hodn\u00e9ho \u0161umu p\u0159i pokusu o \u010dten\u00ed ze skript\u016f obraz\u016f, generovan\u00fdch p\u0159es prvek canvas. Byla vypnuta kresba textu na str\u00e1nce pomoc\u00ed lok\u00e1ln\u011b nainstalovan\u00fdch nestandardn\u00edch p\u00edsem.    <center><img decoding=\"async\" alt=\"Verze Firefox 145 s roz\u0161\u00ed\u0159enou ochranou proti skryt\u00e9 identifikaci\" src=\"\/wp-content\/uploads\/2025\/11\/242c4f5c55c5df98bf928fcee13ddc50.png\" style=\"display:block;margin: 0 auto;\" \/><\/center>      <\/p>\n<li class=\"l\"> V re\u017eimu zv\u00fd\u0161en\u00e9 ochrany p\u0159ed sledov\u00e1n\u00edm (ETP, Enhanced Tracking Protection) je standardn\u011b zapnuta ochrana p\u0159ed sledov\u00e1n\u00edm pomoc\u00ed p\u0159esm\u011brov\u00e1n\u00ed (Bounce Tracking Protection). Mechanismus Bounce Tracking Protection umo\u017e\u0148uje sledovat aktivitu specifickou pro sledov\u00e1n\u00ed p\u0159es p\u0159esm\u011brov\u00e1n\u00ed a pravideln\u011b \u010distit cookies a lok\u00e1ln\u011b ulo\u017een\u00e1 data pou\u017e\u00edvan\u00e1 pro sledov\u00e1n\u00ed. Na rozd\u00edl od re\u017eimu \u201eCookie Purging\u201c se \u010di\u0161t\u011bn\u00ed neprov\u00e1d\u00ed na z\u00e1klad\u011b seznamu zn\u00e1m\u00fdch tracker\u016f, ale na z\u00e1klad\u011b heuristiky, kter\u00e1 identifikuje nov\u00e9 sledovac\u00ed str\u00e1nky t\u00edm, \u017ee analyzuje chov\u00e1n\u00ed po p\u0159esm\u011brov\u00e1n\u00ed.\n<p>Podstata metody sledov\u00e1n\u00ed na z\u00e1klad\u011b p\u0159esm\u011brov\u00e1n\u00ed spo\u010d\u00edv\u00e1 v tom, \u017ee k\u00f3d trackeru p\u0159esm\u011brov\u00e1v\u00e1 u\u017eivatele nejprve na svou str\u00e1nku a teprve odtud p\u0159ehazuje na c\u00edlovou str\u00e1nku, co\u017e umo\u017e\u0148uje trackeru ulo\u017eit cookies a data do m\u00edstn\u00edho \u00falo\u017ei\u0161t\u011b v n\u00e1vaznosti na svou str\u00e1nku. Ukl\u00e1d\u00e1n\u00ed dat po p\u0159echodu na jinou str\u00e1nku umo\u017e\u0148uje obej\u00edt d\u0159\u00edve implementovan\u00e9 metody pro blokov\u00e1n\u00ed mezis\u00edtov\u00fdch operac\u00ed v prohl\u00ed\u017ee\u010di \u2014 proto\u017ee mezistr\u00e1nka se otev\u00edr\u00e1 mimo kontext jin\u00e9 str\u00e1nky, na takov\u00e9 str\u00e1nce lze bez p\u0159ek\u00e1\u017eek nastavovat sledovac\u00ed cookies.      <\/p>\n<li class=\"l\"> Byla p\u0159id\u00e1na podpora kontejner\u016f Matroska (pro kodeky AVC, HEVC, VP8, VP9, AV1, AAC, Opus a Vorbis).\n<li class=\"l\"> Ve vestav\u011bn\u00e9m syst\u00e9mu strojov\u00e9ho p\u0159ekladu bylo zv\u00fd\u0161eno pohodl\u00ed p\u0159ekladu mezi jazyky s r\u016fzn\u00fdm sm\u011brem sledov\u00e1n\u00ed znak\u016f. Pro zmen\u0161en\u00ed m\u00edstn\u011b nainstalovan\u00fdch model\u016f byl pou\u017eit algoritmus Zstandard, kter\u00fd sn\u00ed\u017eil velikost stahovan\u00fdch dat a u\u0161et\u0159il m\u00edsto na m\u00edstn\u00edm \u00falo\u017ei\u0161ti.\n<li class=\"l\"> V konfigurac\u00edch bez nainstalovan\u00fdch dopl\u0148k\u016f nyn\u00ed kliknut\u00ed na panelov\u00e9 tla\u010d\u00edtko pro p\u0159\u00edstup k dopl\u0148k\u016fm zobraz\u00ed vysv\u011btlen\u00ed v\u00fdhod dopl\u0148k\u016f s odkazem na katalog dopl\u0148k\u016f.\n<li class=\"l\"> V JavaScriptu byl implementov\u00e1n metod Atomics.waitAsync(), kter\u00fd nab\u00edz\u00ed asynchronn\u00ed verzi metody Atomics.wait(), umo\u017e\u0148uj\u00edc\u00ed \u010dekat na stanoven\u00ed um\u00edst\u011bn\u00ed SharedArrayBuffer podobn\u011b jako Atomics.wait, ale s n\u00e1vratem Promise.\n<li class=\"l\"> Byla p\u0159id\u00e1na podpora HTTP hlavi\u010dek Integrity-Policy a Integrity-Policy-Report-Only, pomoc\u00ed kter\u00fdch lze prov\u00e1d\u011bt kontrolu integrity stahovan\u00fdch skript\u016f.\n<li class=\"l\"> Bylo implementov\u00e1no CSS vlastnost text-autospace, kter\u00e9 prov\u00e1d\u00ed automatickou korekci mezery mezi znaky z r\u016fzn\u00fdch p\u00edsem (nap\u0159\u00edklad mezi latinkou a hieroglyphy).\n<li class=\"l\"> V CSS vlastnosti font-family byla implementov\u00e1na podpora pro rodinu p\u00edsem \u201emath\u201c pro spr\u00e1vn\u00e9 vykreslov\u00e1n\u00ed matematick\u00fdch v\u00fdraz\u016f.\n<li class=\"l\"> Do API ToggleEvent bylo p\u0159id\u00e1no vlastnost source, kter\u00e9 obsahuje objekt Element p\u0159edstavuj\u00edc\u00ed ovl\u00e1dac\u00ed prvek, kter\u00fd vyvolal zm\u011bnu stavu, na jej\u00ed\u017e z\u00e1klad\u011b bylo generov\u00e1no ud\u00e1lost Toggle. Nap\u0159\u00edklad, kdy\u017e u\u017eivatel klikne na prvek \u201e<button>\u201c s atributem \u201epopovertarget\u201c, p\u0159i otev\u0159en\u00ed vyskakovac\u00edho okna bude vygenerov\u00e1no ud\u00e1lost ToggleEvent, jej\u00ed\u017e vlastnost \u201esource\u201c umo\u017en\u00ed pochopit, kter\u00fd prvek \u201e<button>\u201c byl stisknut.\n<li class=\"l\"> Ve stavech pro platformu Windows byl z\u00e1stupce pro spu\u0161t\u011bn\u00ed Firefoxu nahrazen samostatnou mini aplikac\u00ed (launcher), kter\u00e1 spou\u0161t\u00ed Firefox, pokud je ji\u017e nainstalov\u00e1n, nebo spou\u0161t\u00ed instal\u00e1tor, pokud je\u0161t\u011b nen\u00ed v syst\u00e9mu.\n<li class=\"l\"> Na po\u010d\u00edta\u010d\u00edch Apple s \u010dipy Apple Silicon a opera\u010dn\u00edm syst\u00e9mem macOS 26 byla implementov\u00e1na podpora API WebGPU.\n<li class=\"l\"> V Firefoxu pro Android:\n<ul>\n<li class=\"l\"> Byla zapnuta povinn\u00e1 kontrola  <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/cs\/ssl-sertifikat\/\"   title=\"TLS certifik\u00e1t\u016f\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"981\">TLS certifik\u00e1t\u016f<\/a> web-server\u016f ve ve\u0159ejn\u00fdch registrech Certificate Transparency, zam\u011b\u0159en\u00fdch na odhalov\u00e1n\u00ed certifik\u00e1t\u016f vytvo\u0159en\u00fdch obchv\u00e1cen\u00edm standardn\u00edch pracovn\u00edch postup\u016f certifika\u010dn\u00ed autority (nap\u0159\u00edklad skryt\u00e9 vytvo\u0159en\u00ed certifik\u00e1tu v d\u016fsledku zneu\u017eit\u00ed zam\u011bstnance nebo kompromitace certifika\u010dn\u00ed autority).\n<li class=\"l\"> Pro urychlen\u00ed kontroly reviz\u00ed TLS certifik\u00e1t\u016f byl zaveden mechanismus CRLite, kter\u00fd funguje na stran\u011b u\u017eivatele. Datab\u00e1ze s informacemi o certifik\u00e1tech ulo\u017een\u00e1 na stran\u011b u\u017eivatele se pravideln\u011b synchronizuje s extern\u00ed datab\u00e1z\u00ed Mozilla.\n<li class=\"l\"> Pro TLS 1.3 a HTTP\/3 byla p\u0159id\u00e1na podpora hybridn\u00edho algoritmu v\u00fdm\u011bny kl\u00ed\u010d\u016f \u201emlkem768x25519\u201c, odoln\u00e9ho v\u016f\u010di \u00fatok\u016fm na kvantov\u00fdch po\u010d\u00edta\u010d\u00edch, a p\u0159edstavuje kombinaci X25519 ECDH a algoritmu ML-KEM (CRYSTALS-Kyber).\n<li class=\"l\"> Komponenty s\u00ed\u0165ov\u00e9ho z\u00e1sobn\u00edku pro protokoly QUIC a HTTP\/3 byly vym\u011bn\u011bny za implementaci napsanou v jazyce Rust, kter\u00e1 se vyzna\u010duje lep\u0161\u00edmi vlastnostmi. <a href=\"https:\/\/prohoster.info\/cs\/server\/\"  data-wpil-monitor-id=\"4016\">v\u00fdkonem<\/a>.    <\/ul>\n<\/ul>\n<p>Krom\u011b novinek a oprav chyb ve Firefoxu 145 byly odstran\u011bny 19 zranitelnosti. 10 zranitelnost\u00ed bylo zp\u016fsobeno probl\u00e9my s pam\u011bt\u00ed, jako jsou p\u0159ete\u010den\u00ed vyrovn\u00e1vac\u00ed pam\u011bti a p\u0159\u00edstup k uvoln\u011bn\u00fdm oblastem pam\u011bti. 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