{"id":100191,"date":"2021-05-18T22:23:32","date_gmt":"2021-05-18T20:23:32","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/kompaniya-mozilla-predstavila-rezhim-strogoj-izolyaczii-sajtov-dlya-firefox"},"modified":"2026-02-04T17:53:51","modified_gmt":"2026-02-04T15:53:51","slug":"kompaniya-mozilla-predstavila-rezhim-strogoj-izolyaczii-sajtov-dlya-firefox","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sk\/blog\/news\/kompaniya-mozilla-predstavila-rezhim-strogoj-izolyaczii-sajtov-dlya-firefox","title":{"rendered":"Spolo\u010dnos\u0165 Mozilla predstavila re\u017eim pr\u00edsnej izol\u00e1cie str\u00e1nok pre Firefox","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Spolo\u010dnos\u0165 Mozilla ozn\u00e1mila za\u010diatok hromadn\u00e9ho testovania v no\u010dn\u00fdch zostaveniach a beta vydaniach Firefoxu re\u017eimu pr\u00edsnej izol\u00e1cie str\u00e1nok, ktor\u00fd sa vyv\u00edjal v r\u00e1mci projektu Fission. Re\u017eim roz\u0161iruje aplik\u00e1ciu viacprocesorovej architekt\u00fary \u2014 namiesto pevn\u00e9ho po\u010dtu procesov, na ka\u017ed\u00fa str\u00e1nku sa vytv\u00e1ra samostatn\u00fd proces. Spr\u00e1va zapnutia re\u017eimu Fission sa realizuje prostredn\u00edctvom premennej \u201efission.autostart=true\u201c v about:config alebo na str\u00e1nke about:preferences#experimental. <\/p>\n

Pripom\u00edname, \u017ee pou\u017e\u00edvan\u00fd v Firefoxe doteraz viacprocesorov\u00fd model predpokladal spustenie baz\u00e9na procesorov: predvolene 8 z\u00e1kladn\u00fdch procesov na spracovanie obsahu, 2 \u010fal\u0161ie neprivilegovan\u00e9 procesy pre webov\u00fd obsah a 4 pomocn\u00e9 procesy pre doplnky, interakciu s GPU, sie\u0165ov\u00e9 oper\u00e1cie a dek\u00f3dovanie multimedi\u00e1lnych d\u00e1t. Rozdelenie kariet do procesov sa uskuto\u010d\u0148ovalo n\u00e1hodne, napr\u00edklad v jednom procese sa mohla nach\u00e1dza\u0165 spracovanie str\u00e1nky banky a ned\u00f4veryhodn\u00e9ho podozriv\u00e9ho zdroja. <\/p>\n

Nov\u00fd re\u017eim pres\u00fava do samostatn\u00e9ho procesu spracovanie ka\u017edej str\u00e1nky s rozdelen\u00edm nie pod\u013ea kariet, ale pod\u013ea dom\u00e9n, \u010do umo\u017e\u0148uje dodato\u010dne izolova\u0165 obsah extern\u00fdch skriptov a iframe blokov. Na oddelen\u00e9 spracovanie subdom\u00e9n typov\u00fdch slu\u017eieb, s\u00favisiacich s r\u00f4znymi str\u00e1nkami, sa aplikuje rozdelenie nie pod\u013ea form\u00e1lnych, ale pod\u013ea skuto\u010dn\u00fdch (eTLD) dom\u00e9n. dom\u00e9ny najvy\u0161\u0161ieho poriadku<\/a>, ozna\u010den\u00fdch v zozname Public Suffix (t. j. str\u00e1nky \u201ea.github.io\u201c a \u201eb.github.io\u201c bud\u00fa vy\u0148at\u00e9 do samostatn\u00fdch procesov). <\/p>\n

Re\u017eim pr\u00edsnej izol\u00e1cie umo\u017e\u0148uje chr\u00e1ni\u0165 sa pred \u00fatokmi cez extern\u00e9 kan\u00e1ly, napr\u00edklad v s\u00favislosti s zranite\u013enos\u0165ami typu Spectre, ktor\u00e9 ved\u00fa k \u00faniku inform\u00e1ci\u00ed v r\u00e1mci jedn\u00e9ho procesu. \u00danik spracov\u00e1van\u00fdch d\u00f4vern\u00fdch \u00fadajov v tom istom procese je mo\u017en\u00fd pri vykon\u00e1van\u00ed ned\u00f4veryhodn\u00e9ho extern\u00e9ho k\u00f3du v engine s JIT a v virtu\u00e1lnych strojoch<\/a>. V kontexte webov\u00fdch prehliada\u010dov m\u00f4\u017ee \u0161kodliv\u00fd JavaScriptov\u00fd k\u00f3d z jednej str\u00e1nky z\u00edska\u0165 inform\u00e1cie o hesl\u00e1ch, pr\u00edstupov\u00fdch k\u013e\u00fa\u010doch a \u010d\u00edslach kreditn\u00fdch kariet zadan\u00fdch na inej str\u00e1nke, spracov\u00e1vanej v rovnakom procese. P\u00f4vodne na ochranu pred \u00fatokmi cez ved\u013eaj\u0161ie kan\u00e1ly v\u00fdvoj\u00e1ri prehliada\u010dov obmedzili presnos\u0165 \u010dasova\u010da a zablokovali pr\u00edstup k API SharedArrayBuffer, no tieto opatrenia iba s\u0165a\u017eovali a spoma\u013eovali realiz\u00e1ciu \u00fatoku (napr\u00edklad, bol ned\u00e1vno navrhnut\u00fd sp\u00f4sob extrakcie d\u00e1t z cache CPU, ktor\u00fd funguje \u00faplne bez JavaScriptu). <\/p>\n

Medzi \u010fal\u0161ie v\u00fdhody pr\u00edsnej izol\u00e1cie patr\u00ed zn\u00ed\u017eenie fragment\u00e1cie pam\u00e4te, efekt\u00edvnej\u0161ie vr\u00e1tenie pam\u00e4te opera\u010dn\u00e9mu syst\u00e9mu, minimaliz\u00e1cia vplyvu garbage collection a intenz\u00edvnych v\u00fdpo\u010dtov na str\u00e1nky v in\u00fdch procesoch, zlep\u0161enie efekt\u00edvnosti rozdelenia z\u00e1\u0165a\u017ee na r\u00f4zne CPU jadra a zv\u00fd\u0161enie stability (zlyhanie procesu spracov\u00e1vaj\u00faceho iframe neovplyvn\u00ed hlavn\u00fa str\u00e1nku a in\u00e9 karty). <\/p>\n

Medzi zn\u00e1me probl\u00e9my, ktor\u00e9 vznikaj\u00fa pri pou\u017e\u00edvan\u00ed Fission, patr\u00ed v\u00fdrazn\u00e9 zv\u00fd\u0161enie spotreby pam\u00e4te, po\u010det X11 pripojen\u00ed a popisova\u010dov s\u00faborov pri otv\u00e1ran\u00ed ve\u013ek\u00e9ho po\u010dtu kariet, ako aj poruchy niektor\u00fdch doplnkov, zmiznutie obsahu iframe pri tla\u010di a vyvolan\u00ed funkcie zaznamen\u00e1vania obrazovky, zn\u00ed\u017eenie efekt\u00edvnosti cachovania dokumentov s iframe, strata obsahu vyplnen\u00fdch, ale neodoslan\u00fdch formul\u00e1rov pri obnove rel\u00e1cie po zlyhan\u00ed.
\n
Zdroj: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Mozilla \u043e\u0431\u044a\u044f\u0432\u0438\u043b\u0430 \u043e \u043d\u0430\u0447\u0430\u043b\u0435 \u043c\u0430\u0441\u0441\u043e\u0432\u043e\u0433\u043e \u0442\u0435\u0441\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0432 \u043d\u043e\u0447\u043d\u044b\u0445 \u0441\u0431\u043e\u0440\u043a\u0430\u0445 \u0438 \u0431\u0435\u0442\u0430-\u0432\u044b\u043f\u0443\u0441\u043a\u0430\u0445 Firefox \u0440\u0435\u0436\u0438\u043c\u0430 \u0441\u0442\u0440\u043e\u0433\u043e\u0439 \u0438\u0437\u043e\u043b\u044f\u0446\u0438\u0438 \u0441\u0430\u0439\u0442\u043e\u0432, \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u0432\u0448\u0435\u0433\u043e\u0441\u044f \u0432 \u0440\u0430\u043c\u043a\u0430\u0445 \u043f\u0440\u043e\u0435\u043a\u0442\u0430 Fission. \u0420\u0435\u0436\u0438\u043c \u0440\u0430\u0441\u0448\u0438\u0440\u044f\u0435\u0442 \u043f\u0440\u0438\u043c\u0435\u043d\u0435\u043d\u0438\u0435 \u043c\u043d\u043e\u0433\u043e\u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043d\u043e\u0439 \u0430\u0440\u0445\u0438\u0442\u0435\u043a\u0442\u0443\u0440\u044b — \u0432\u043c\u0435\u0441\u0442\u043e \u0444\u0438\u043a\u0441\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u0433\u043e \u043f\u0443\u043b\u0430 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0432, \u043d\u0430 \u043a\u0430\u0436\u0434\u044b\u0439 \u0441\u0430\u0439\u0442 \u0441\u043e\u0437\u0434\u0430\u0451\u0442\u0441\u044f \u043e\u0442\u0434\u0435\u043b\u044c\u043d\u044b\u0439 \u043f\u0440\u043e\u0446\u0435\u0441\u0441. \u0423\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u0435 \u0432\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0435\u043c \u0440\u0435\u0436\u0438\u043c\u0430 Fission \u043e\u0441\u0443\u0449\u0435\u0441\u0442\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u0447\u0435\u0440\u0435\u0437 \u043f\u0435\u0440\u0435\u043c\u0435\u043d\u043d\u0443\u044e «fission.autostart=true» \u0432 about:config \u0438\u043b\u0438 \u043d\u0430 \u0441\u0442\u0440\u0430\u043d\u0438\u0446\u0435 about:preferences#experimental. \u041d\u0430\u043f\u043e\u043c\u043d\u0438\u043c, \u0447\u0442\u043e \u043f\u0440\u0438\u043c\u0435\u043d\u044f\u0435\u043c\u0430\u044f […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-100191","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47 Spolo\u010dnos\u0165 Mozilla predstavila re\u017eim pr\u00edsnej izol\u00e1cie str\u00e1nok pre Firefox | ProHoster","description":"Spolo\u010dnos\u0165 Mozilla ozn\u00e1mila za\u010diatok hromadn\u00e9ho testovania vo no\u010dn\u00fdch zostav\u00e1ch a beta verzi\u00e1ch Firefoxu re\u017eimu pr\u00edsnej izol\u00e1cie str\u00e1nok, ktor\u00fd sa vyv\u00edjal v r\u00e1mci projektu Fission.","canonical_url":"https:\/\/prohoster.info\/sk\/blog\/news\/kompaniya-mozilla-predstavila-rezhim-strogoj-izolyaczii-sajtov-dlya-firefox","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"sk_SK","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Mozilla \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u0438\u043b\u0430 \u0440\u0435\u0436\u0438\u043c \u0441\u0442\u0440\u043e\u0433\u043e\u0439 \u0438\u0437\u043e\u043b\u044f\u0446\u0438\u0438 \u0441\u0430\u0439\u0442\u043e\u0432 \u0434\u043b\u044f Firefox | ProHoster","og:description":"\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Mozilla \u043e\u0431\u044a\u044f\u0432\u0438\u043b\u0430 \u043e \u043d\u0430\u0447\u0430\u043b\u0435 \u043c\u0430\u0441\u0441\u043e\u0432\u043e\u0433\u043e \u0442\u0435\u0441\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0432 \u043d\u043e\u0447\u043d\u044b\u0445 \u0441\u0431\u043e\u0440\u043a\u0430\u0445 \u0438 \u0431\u0435\u0442\u0430-\u0432\u044b\u043f\u0443\u0441\u043a\u0430\u0445 Firefox \u0440\u0435\u0436\u0438\u043c\u0430 \u0441\u0442\u0440\u043e\u0433\u043e\u0439 \u0438\u0437\u043e\u043b\u044f\u0446\u0438\u0438 \u0441\u0430\u0439\u0442\u043e\u0432, \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u0432\u0448\u0435\u0433\u043e\u0441\u044f \u0432 \u0440\u0430\u043c\u043a\u0430\u0445 \u043f\u0440\u043e\u0435\u043a\u0442\u0430 Fission.","og:url":"https:\/\/prohoster.info\/sk\/blog\/news\/kompaniya-mozilla-predstavila-rezhim-strogoj-izolyaczii-sajtov-dlya-firefox","og:image":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:secure_url":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:width":350,"og:image:height":350,"article:published_time":"2021-05-18T20:23:32+00:00","article:modified_time":"2026-02-04T15:53:51+00:00","article:publisher":"https:\/\/www.facebook.com\/prohoster","article:author":"https:\/\/www.facebook.com\/prohoster"},"aioseo_meta_data":{"post_id":"100191","title":null,"description":null,"keywords":null,"keyphrases":null,"primary_term":null,"canonical_url":null,"og_title":null,"og_description":null,"og_object_type":"default","og_image_type":"default","og_image_url":null,"og_image_width":null,"og_image_height":null,"og_image_custom_url":null,"og_image_custom_fields":null,"og_video":null,"og_custom_url":null,"og_article_section":null,"og_article_tags":null,"twitter_use_og":false,"twitter_card":"default","twitter_image_type":"default","twitter_image_url":null,"twitter_image_custom_url":null,"twitter_image_custom_fields":null,"twitter_title":null,"twitter_description":null,"schema":{"blockGraphs":[],"customGraphs":[],"default":{"data":{"Article":[],"Course":[],"Dataset":[],"FAQPage":[],"Movie":[],"Person":[],"Product":[],"ProductReview":[],"Car":[],"Recipe":[],"Service":[],"SoftwareApplication":[],"WebPage":[]},"graphName":"","isEnabled":true},"graphs":[]},"schema_type":null,"schema_type_options":null,"pillar_content":false,"robots_default":true,"robots_noindex":false,"robots_noarchive":false,"robots_nosnippet":false,"robots_nofollow":false,"robots_noimageindex":false,"robots_noodp":false,"robots_notranslate":false,"robots_max_snippet":null,"robots_max_videopreview":null,"robots_max_imagepreview":"large","priority":null,"frequency":null,"local_seo":null,"seo_analyzer_scan_date":null,"breadcrumb_settings":null,"limit_modified_date":false,"reviewed_by":null,"ai":null,"created":"2021-05-18 21:00:07","updated":"2026-02-04 15:53:51","focus_keyword":null,"additional_keywords":null,"truseo_locale":null},"gt_translate_keys":[{"key":"link","format":"url"}],"_links":{"self":[{"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/posts\/100191","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/comments?post=100191"}],"version-history":[{"count":2,"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/posts\/100191\/revisions"}],"predecessor-version":[{"id":164131,"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/posts\/100191\/revisions\/164131"}],"wp:attachment":[{"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/media?parent=100191"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/categories?post=100191"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/tags?post=100191"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}