{"id":181657,"date":"2026-05-22T12:24:54","date_gmt":"2026-05-22T10:24:54","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/firefox-151"},"modified":"2026-05-22T12:24:54","modified_gmt":"2026-05-22T10:24:54","slug":"firefox-151","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hu\/blog\/news\/firefox-151","title":{"rendered":"Firefox 151","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><noindex>      <\/p>\n<p><a rel=\"nofollow\" href=\"https:\/\/download-installer.cdn.mozilla.net\/pub\/firefox\/releases\/151.0\/\">El\u00e9rhet\u0151<\/a> A Firefox 151, remarkable for its improved protection against digital fingerprinting, support for Web Serial API, as well as the ability for websites to capture keyboard input in full-screen mode.<\/noindex>\n<\/p>\n<ul>\n<li>Local profile backup is available on Linux (in macOS, enabling <a rel=\"nofollow\" href=\"https:\/\/bugzilla.mozilla.org\/show_bug.cgi?id=2039334\">is postponed<\/a> until the next release).\n<\/li>\n<li>\u00c1tdolgoz\u00e1sra ker\u00fclt <a rel=\"nofollow\" href=\"https:\/\/www.firefox.com\/media\/img\/firefox\/releasenotes\/note-images\/151_newtab_wallpaper.png\">design<\/a> of the new tab page to prepare it for future changes, such as widgets and improved shortcuts, which are planned to appear in the next version (browser.newtabpage.activity-stream.nova.enabled).\n<\/li>\n<li>The search field width has been significantly increased in settings.\n<\/li>\n<li>In private browsing mode <a rel=\"nofollow\" href=\"https:\/\/bugzilla.mozilla.org\/show_bug.cgi?id=1902686\">megjelenik<\/a> lehet\u0151s\u00e9g <a rel=\"nofollow\" href=\"https:\/\/www.firefox.com\/media\/img\/firefox\/releasenotes\/note-images\/151_private_browsing.png\">clear<\/a> all data from the current session without the need to close the browser window and start a new session.\n<\/li>\n<li>Tracking protection has become even better at combating digital fingerprinting. The number of users that can be uniquely identified has decreased on average by 14% (and by 49% on macOS).\n<\/li>\n<li>PDF viewer <a rel=\"nofollow\" href=\"https:\/\/bugzilla.mozilla.org\/show_bug.cgi?id=2030178\">megtanulta<\/a> <a rel=\"nofollow\" href=\"https:\/\/www.firefox.com\/media\/img\/firefox\/releasenotes\/note-images\/151_pdf_merge.png\">combine<\/a> multiple documents.\n<\/li>\n<li>Az \u201eEgy\u00e9b eszk\u00f6z\u00f6k\u201d men\u00fcben <a rel=\"nofollow\" href=\"https:\/\/bugzilla.mozilla.org\/show_bug.cgi?id=2028995\">hozz\u00e1adva<\/a> there is an option to call about:translations.\n<\/li>\n<li>The built-in VPN now <a rel=\"nofollow\" href=\"https:\/\/bugzilla.mozilla.org\/show_bug.cgi?id=2031802\">MMM-DD-YYYY<\/a> selects the country where the exit node is located.\n<\/li>\n<li><a rel=\"nofollow\" href=\"https:\/\/bugzilla.mozilla.org\/show_bug.cgi?id=1525379\">Kijav\u00edtva<\/a> passing incorrect information about screen resolution to websites on systems with multiple monitors.\n<\/li>\n<li><a rel=\"nofollow\" href=\"https:\/\/support.mozilla.org\/kb\/automatically-fill-your-address-web-forms\">Autofill addresses<\/a> <a rel=\"nofollow\" href=\"https:\/\/bugzilla.mozilla.org\/show_bug.cgi?id=2031025\">belefoglalt\u00e1k<\/a> for users from the Netherlands.\n<\/li>\n<li><a rel=\"nofollow\" href=\"https:\/\/bugzilla.mozilla.org\/show_bug.cgi?id=1924572\">Removed<\/a> \u00e9p\u00edt\u00e9szeti korl\u00e1toz\u00e1s, amely megakad\u00e1lyozta, hogy a weboldalak l\u00e1thass\u00e1k a tempor\u00e1lis enged\u00e9lyeket (amikor a felhaszn\u00e1l\u00f3 p\u00e9ld\u00e1ul enged\u00e9lyezte a geolok\u00e1ci\u00f3hoz val\u00f3 hozz\u00e1f\u00e9r\u00e9st, de nem v\u00e1lasztotta a \u201e d\u00f6nt\u00e9s megjegyz\u00e9se\u201d opci\u00f3t).\n<\/li>\n<li>Moving the profile to another directory or another OS <a rel=\"nofollow\" href=\"https:\/\/bugzilla.mozilla.org\/show_bug.cgi?id=1429838\">no longer disrupts<\/a> the operation of installed extensions and themes (old paths remained in extensions.json).\n<\/li>\n<li>Megval\u00f3s\u00edtva lett\n<ul>\n<li><a rel=\"nofollow\" href=\"https:\/\/bugzilla.mozilla.org\/show_bug.cgi?id=1717071\">a parancsok<\/a> support for links <a rel=\"nofollow\" href=\"https:\/\/support.apple.com\/en-us\/102430\">placed<\/a> in the clipboard on iOS devices.\n<\/li>\n<li>Dropdown elements  now <a rel=\"nofollow\" href=\"https:\/\/bugzilla.mozilla.org\/show_bug.cgi?id=2018516\">use<\/a> the native operating system menu.\n<\/li>\n<li>Fixed a bug that caused expanded Firefox windows on multi-monitor systems after restart <a rel=\"nofollow\" href=\"https:\/\/bugzilla.mozilla.org\/show_bug.cgi?id=875858\">to open<\/a> on the wrong monitor.\n<\/li>\n<li><a rel=\"nofollow\" href=\"https:\/\/bugzilla.mozilla.org\/show_bug.cgi?id=1396587\">Fejlesztve<\/a> color management when copying and pasting images.\n<\/li>\n<\/ul>\n<\/li>\n<li>Windows: Firefox now <a rel=\"nofollow\" href=\"https:\/\/bugzilla.mozilla.org\/show_bug.cgi?id=2022043\">figyelembe veszi<\/a> system geolocation settings when the user allows the website to determine their location. If geolocation is disabled at the OS level, the browser will ask the user to enable it.\n<\/li>\n<li>HTML: <a rel=\"nofollow\" href=\"https:\/\/bugzil.la\/2031295\">Megjelent<\/a> <a rel=\"nofollow\" href=\"https:\/\/bugzil.la\/2023824\">Passkey<\/a> attribute <a rel=\"nofollow\" href=\"https:\/\/developer.mozilla.org\/en-US\/docs\/Web\/HTML\/Reference\/Elements\/template#shadowrootslotassignment\">shadowrootslotassignment<\/a> on elements <a rel=\"nofollow\" href=\"https:\/\/developer.mozilla.org\/en-US\/docs\/Web\/HTML\/Reference\/Elements\/template\">&lt;template&gt;<\/a>. A JavaScriptben ez a tulajdons\u00e1g a k\u00f6vetkez\u0151kkel van \u00f6sszef\u00fcgg\u00e9sben <a rel=\"nofollow\" href=\"https:\/\/developer.mozilla.org\/en-US\/docs\/Web\/API\/ShadowRoot\/slotAssignment\">ShadowRoot.slotAssignment<\/a> vagy <a rel=\"nofollow\" href=\"https:\/\/developer.mozilla.org\/en-US\/docs\/Web\/API\/HTMLTemplateElement\/shadowRootSlotAssignment\">HTMLTemplateElement.shadowRootSlotAssignment<\/a>.\n<\/li>\n<li>CSS:\n<ul>\n<li>Direkt\u00edva <a rel=\"nofollow\" href=\"https:\/\/developer.mozilla.org\/en-US\/docs\/Web\/CSS\/Reference\/At-rules\/@container\">@container<\/a> <a rel=\"nofollow\" href=\"https:\/\/bugzil.la\/2016929\">mostant\u00f3l<\/a> <a rel=\"nofollow\" href=\"https:\/\/bugzil.la\/2019254\">t\u00e1mogatja<\/a> <a rel=\"nofollow\" href=\"https:\/\/bugzil.la\/2024601\">lek\u00e9rdez\u00e9sek<\/a> <a rel=\"nofollow\" href=\"https:\/\/developer.mozilla.org\/en-US\/docs\/Web\/CSS\/Guides\/Containment\/Container_size_and_style_queries#container_style_queries\">style()<\/a> (lehet\u0151v\u00e9 teszi, hogy ellen\u0151rizze, van-e \u00e9rv\u00e9nyes deklar\u00e1ci\u00f3ja a kont\u00e9nernek, egy adott tulajdons\u00e1ga vagy egyedi tulajdons\u00e1ga, \u00e9s ennek megfelel\u0151en alkalmazza a st\u00edlusokat a gyermekeire).\n<\/li>\n<li>A <a rel=\"nofollow\" href=\"https:\/\/developer.mozilla.org\/en-US\/docs\/Web\/CSS\/Reference\/Properties\/position-anchor\">position-anchor<\/a> mostant\u00f3l <a rel=\"nofollow\" href=\"https:\/\/bugzil.la\/2030351\">t\u00e1mogatja<\/a> (alap\u00e9rtelmezett) norm\u00e1l \u00e9rt\u00e9k (biztos\u00edtja a k\u00f6vetkezetess\u00e9get a tulajdons\u00e1ggal <a rel=\"nofollow\" href=\"https:\/\/developer.mozilla.org\/en-US\/docs\/Web\/CSS\/Reference\/Properties\/position-area\">position-area<\/a>: ha friss\u00fcl, a position-anchor is automatikusan friss\u00fcl).\n<\/li>\n<\/ul>\n<\/li>\n<li>API:\n<ul>\n<li>M\u00f3dszer <a rel=\"nofollow\" href=\"https:\/\/developer.mozilla.org\/en-US\/docs\/Web\/API\/Sanitizer\/replaceElementWithChildren\">Sanitizer.replaceElementWithChildren()<\/a> mostant\u00f3l <a rel=\"nofollow\" href=\"https:\/\/bugzil.la\/2032359\">a p\u00e9nzeszk\u00f6z\u00f6ket! M\u00e9g dics\u00e9retet is kap 75-90% -t\u00f3l a r\u00e9sztvev\u0151k k\u00f6z\u00fcl, b\u00e1r a projekt fejl\u0151d\u00e9se nyilv\u00e1nval\u00f3an lelassult. A legmeglep\u0151bb, hogy mindenki<\/a> hamis, ha a cser\u00e9lend\u0151 elem <a rel=\"nofollow\" href=\"https:\/\/developer.mozilla.org\/en-US\/docs\/Web\/SVG\/Reference\/Element\/svg\">&lt;svg&gt;<\/a> az SVG n\u00e9vt\u00e9rben vagy <a rel=\"nofollow\" href=\"https:\/\/developer.mozilla.org\/en-US\/docs\/Web\/MathML\/Reference\/Element\/math\"><math><\/a> a MathML n\u00e9vt\u00e9rben tal\u00e1lhat\u00f3.\n<\/li>\n<li><a rel=\"nofollow\" href=\"https:\/\/bugzil.la\/2006594\">Megjelent<\/a> Passkey <a rel=\"nofollow\" href=\"https:\/\/developer.mozilla.org\/en-US\/docs\/Web\/API\/Document_Picture-in-Picture_API\">Dokumentum K\u00e9p-a-K\u00e9pben API<\/a> (lehet\u0151v\u00e9 teszi egy ablak megnyit\u00e1s\u00e1t, amely a t\u00f6bbi ablak f\u00f6l\u00f6tt helyezkedik el, \u00e9s b\u00e1rmilyen HTML tartalommal felt\u00f6lthet\u0151).\n<\/li>\n<li><a rel=\"nofollow\" href=\"https:\/\/bugzil.la\/1943070\">Hozz\u00e1adva<\/a> tulajdons\u00e1g <a rel=\"nofollow\" href=\"https:\/\/developer.mozilla.org\/en-US\/docs\/Web\/API\/CanvasRenderingContext2D\/lang\">CanvasRenderingContext2D.lang<\/a> (hasznos a h\u00e1tt\u00e9rcanvas kontextus\u00e1nak be\u00e1ll\u00edt\u00e1s\u00e1hoz, amely m\u00e9g azel\u0151tt renderelhet\u0151, hogy b\u00e1rmely elemhez kapcsol\u00f3dna <a rel=\"nofollow\" href=\"https:\/\/developer.mozilla.org\/en-US\/docs\/Web\/HTML\/Reference\/Elements\/canvas\">&lt;canvas&gt;<\/a>).\n<\/li>\n<li>M\u00f3dszer <a rel=\"nofollow\" href=\"https:\/\/developer.mozilla.org\/en-US\/docs\/Web\/API\/Element\/requestFullscreen\">Element.requestFullscreen()<\/a> mostant\u00f3l <a rel=\"nofollow\" href=\"https:\/\/bugzil.la\/2032302\">accept\u00e1lja<\/a> tulajdons\u00e1g <a rel=\"nofollow\" href=\"https:\/\/developer.mozilla.org\/en-US\/docs\/Web\/API\/Element\/requestFullscreen#keyboardlock\">options.keyboardLock<\/a> mint param\u00e9ter (lehet\u0151v\u00e9 teszi a webhelyek sz\u00e1m\u00e1ra, hogy k\u00e9rj\u00e9k a billenty\u0171zet blokkol\u00e1s\u00e1t, amikor az elem teljes k\u00e9perny\u0151s m\u00f3dban l\u00e1that\u00f3). A webhelyek most megakad\u00e1lyozhatj\u00e1k a teljes k\u00e9perny\u0151s m\u00f3db\u00f3l val\u00f3 kil\u00e9p\u00e9st az Esc billenty\u0171 megnyom\u00e1s\u00e1val (a kil\u00e9p\u00e9s tov\u00e1bbra is lehets\u00e9ges a gomb lenyomva tart\u00e1s\u00e1val), valamint elfoghatj\u00e1k a kor\u00e1bban fenntartott b\u00f6ng\u00e9sz\u0151 gyorsbillenty\u0171it, \u00e9s t\u00f6r\u00f6lhetik azok szok\u00e1sos m\u0171velet\u00e9t.\n<\/li>\n<li><a rel=\"nofollow\" href=\"https:\/\/developer.mozilla.org\/en-US\/docs\/Web\/API\/GPUSupportedLimits\">GPUSupportedLimits<\/a> mostant\u00f3l <a rel=\"nofollow\" href=\"https:\/\/bugzil.la\/2006720\">t\u00e1mogatja<\/a> maxStorageBuffersInFragmentStage, maxStorageBuffersInVertexStage, maxStorageTexturesInFragmentStage \u00e9s maxStorageTexturesInVertexStage tulajdons\u00e1gai (lehet\u0151v\u00e9 teszik a t\u00e1rol\u00e1si pufferek \u00e9s text\u00far\u00e1k maxim\u00e1lis sz\u00e1m\u00e1nak megad\u00e1s\u00e1t a fragment\u00e1ci\u00f3s \u00e9s cs\u00facs shader szakaszokban.\n<\/li>\n<li><a rel=\"nofollow\" href=\"https:\/\/bugzil.la\/2022827\">a parancsok<\/a> a property support <a rel=\"nofollow\" href=\"https:\/\/developer.mozilla.org\/en-US\/docs\/Web\/API\/CSSContainerRule\/conditions\">CSSContainerRule.conditions<\/a>. A condition tulajdons\u00e1g az adott direkt\u00edv\u00e1t k\u00e9pviseli <a rel=\"nofollow\" href=\"https:\/\/developer.mozilla.org\/en-US\/docs\/Web\/CSS\/Reference\/At-rules\/@container\">@container<\/a> objektumok t\u00f6mbjek\u00e9nt, ahol minden egyes objektum egy k\u00fcl\u00f6n container felt\u00e9telt \u00edr le.\n<\/li>\n<li>Bekapcsolva a t\u00e1mogat\u00e1s <a rel=\"nofollow\" href=\"https:\/\/developer.mozilla.org\/en-US\/docs\/Web\/API\/Web_Serial_API\">Web Serial API<\/a> (lehet\u0151v\u00e9 teszi a soros interf\u00e9sszel rendelkez\u0151 mikrokontrollerek ir\u00e1ny\u00edt\u00e1s\u00e1t). Ez lehet\u0151s\u00e9get ad a mikrokontrollerek, valamint a hibakeres\u0151 platformok (mint az ESP, BBC micro:bit \u00e9s Raspberry Pi Pico), 3D-nyomtat\u00f3k, CNC g\u00e9pek \u00e9s m\u00e1s eszk\u00f6z\u00f6k programoz\u00e1s\u00e1ra. Minden webhely, amely ezt az API-t haszn\u00e1lni szeretn\u00e9, l\u00e9tre kell hoznia <a rel=\"nofollow\" href=\"https:\/\/support.mozilla.org\/en-US\/kb\/site-permission-add-ons\">egy speci\u00e1lis kieg\u00e9sz\u00edt\u0151t<\/a>, amely megadja a sz\u00fcks\u00e9ges enged\u00e9lyeket, \u00e9s a felhaszn\u00e1l\u00f3nak telep\u00edtenie kell ezt a kieg\u00e9sz\u00edt\u0151t (hasonl\u00f3an ahhoz, ahogyan a WebMIDI eset\u00e9ben m\u00e1r megt\u00f6rt\u00e9nt).\n<\/li>\n<\/ul>\n<\/li>\n<li>Fejleszt\u0151i eszk\u00f6z\u00f6k: Az anim\u00e1ci\u00f3s sebess\u00e9g ir\u00e1ny\u00edt\u00e1s\u00e1ra szolg\u00e1l\u00f3 leg\u00f6rd\u00fcl\u0151 men\u00fc mostant\u00f3l <a rel=\"nofollow\" href=\"https:\/\/bugzilla.mozilla.org\/show_bug.cgi?id=1995485\">mindig el\u00e9rhet\u0151<\/a> (eddig csak akt\u00edv anim\u00e1ci\u00f3 eset\u00e9n jelent meg, ami megnehez\u00edtette a haszn\u00e1lat\u00e1t nagyon r\u00f6vid anim\u00e1ci\u00f3k eset\u00e9n).\n<\/li>\n<\/ul>\n<p>Forr\u00e1s: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.linux.org.ru\/news\/mozilla\/18297259\">linux.org.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0414\u043e\u0441\u0442\u0443\u043f\u0435\u043d Firefox 151, \u043f\u0440\u0438\u043c\u0435\u0447\u0430\u0442\u0435\u043b\u044c\u043d\u044b\u0439 \u0443\u043b\u0443\u0447\u0448\u0435\u043d\u043d\u043e\u0439 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 \u0441\u0431\u043e\u0440\u0430 \u0446\u0438\u0444\u0440\u043e\u0432\u044b\u0445 \u043e\u0442\u043f\u0435\u0447\u0430\u0442\u043a\u043e\u0432, \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u043e\u0439 Web Serial API, \u0430 \u0442\u0430\u043a\u0436\u0435 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044c\u044e \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0437\u0430\u0445\u0432\u0430\u0442\u044b\u0432\u0430\u0442\u044c \u0432\u0432\u043e\u0434 \u0441 \u043a\u043b\u0430\u0432\u0438\u0430\u0442\u0443\u0440\u044b \u0432 \u043f\u043e\u043b\u043d\u043e\u044d\u043a\u0440\u0430\u043d\u043d\u043e\u043c \u0440\u0435\u0436\u0438\u043c\u0435. \u041b\u043e\u043a\u0430\u043b\u044c\u043d\u043e\u0435 \u0440\u0435\u0437\u0435\u0440\u0432\u043d\u043e\u0435 \u043a\u043e\u043f\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 \u043f\u0440\u043e\u0444\u0438\u043b\u044f \u0434\u043e\u0441\u0442\u0443\u043f\u043d\u043e \u0432 Linux (\u0432 macOS \u0432\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0435 \u043e\u0442\u043b\u043e\u0436\u0435\u043d\u043e \u0434\u043e \u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0435\u0433\u043e \u0432\u044b\u043f\u0443\u0441\u043a\u0430). \u041f\u0435\u0440\u0435\u0440\u0430\u0431\u043e\u0442\u0430\u043d \u0434\u0438\u0437\u0430\u0439\u043d \u043d\u043e\u0432\u043e\u0439 \u0432\u043a\u043b\u0430\u0434\u043a\u0438, \u0447\u0442\u043e\u0431\u044b \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0438\u0442\u044c \u0435\u0451 \u0433\u043e\u0442\u043e\u0432\u043d\u043e\u0441\u0442\u044c \u043a \u0431\u0443\u0434\u0443\u0449\u0438\u043c \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u044f\u043c, \u0442\u0430\u043a\u0438\u043c \u043a\u0430\u043a \u0432\u0438\u0434\u0436\u0435\u0442\u044b \u0438 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":8,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-181657","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0414\u043e\u0441\u0442\u0443\u043f\u0435\u043d Firefox 151, \u043f\u0440\u0438\u043c\u0435\u0447\u0430\u0442\u0435\u043b\u044c\u043d\u044b\u0439 \u0443\u043b\u0443\u0447\u0448\u0435\u043d\u043d\u043e\u0439 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