{"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\/hr\/blog\/news\/kompaniya-mozilla-predstavila-rezhim-strogoj-izolyaczii-sajtov-dlya-firefox","title":{"rendered":"Tvrtka Mozilla predstavila je na\u010din stroge izolacije web stranica za Firefox","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Tvrtka Mozilla objavila je po\u010detak opse\u017enog testiranja u no\u0107nim izdanjima i beta verzijama Firefoxa na\u010dina stroge izolacije web stranica, koji se razvija unutar projekta Fission. Ovaj na\u010din pro\u0161iruje primjenu vi\u0161ekratne arhitekture \u2014 umjesto fiksnog skupa procesa, za svaku web stranicu stvara se poseban proces. Uklju\u010divanje na\u010dina Fission upravlja se putem varijable \u00abfission.autostart=true\u00bb u about:config ili na stranici about:preferences#experimental. <\/p>\n

Podsje\u0107amo da je primijenjena u Firefoxu do sada vi\u0161ekorisni\u010dka arhitektura podrazumijevala pokretanje skupa procesa za obradu: prema zadanim postavkama 8 glavnih procesa za obradu sadr\u017eaja, 2 dodatna neprivilegirana procesa za web sadr\u017eaj i 4 pomo\u0107na procesa za dodatke, interakciju s GPU-om, mre\u017ene operacije i dekodiranje multimedijskih podataka. Raspodjela kartica po procesima vr\u0161ila se nasumi\u010dno, tako da je u jednom procesu mogla biti obrada web stranice banke i nepouzdane sumnjive stranice. <\/p>\n

Novi re\u017eim prenosi obradu svake web stranice u zaseban proces s izolacijom ne po karticama, nego po domenama, \u0161to dodatno omogu\u0107uje izolaciju sadr\u017eaja vanjskih skripti i iframe blokova. Za odvojenu obradu poddomena tipi\u010dnih usluga povezanih s razli\u010ditim stranicama koristi se razdvajanje ne po formalnim, nego po stvarnim (eTLD) domenama najvi\u0161eg reda<\/a>, ozna\u010denom na popisu Public Suffix (tj. web stranice \u00aba.github.io\u00bb i \u00abb.github.io\u00bb bit \u0107e smje\u0161tene u razli\u010dite procese). <\/p>\n

Re\u017eim stroge izolacije omogu\u0107uje za\u0161titu od napada putem vanjskih kanala, poput onih povezanih s ranjivostima klase Spectre, koje dovode do curenja informacija unutar jednog procesa. Curenje povjerljivih podataka obra\u0111enih u istom procesu mo\u017ee se dogoditi pri izvr\u0161avanju nepouzdanog vanjskog koda u JIT motorima i u virtualnim ma\u0161inama<\/a>. U kontekstu web preglednika, zlonamjenski JavaScript kod s jedne stranice mo\u017ee dobiti informacije o lozinkama, pristupnim klju\u010devima i brojevima kreditnih kartica unesenim na drugoj stranici, obra\u0111ivanoj u istom procesu. Prvotno su programeri preglednika uveli ograni\u010denja u preciznosti tajmera i blokirali pristup API-ju SharedArrayBuffer kako bi se za\u0161titili od napada putem sporednih kanala, no te mjere su samo ote\u017eale i usporile provo\u0111enje napada (na primjer, nedavno je predlo\u017een metod izvla\u010denja podataka iz CPU predmemorije koji djeluje potpuno bez JavaScript-a). <\/p>\n

Me\u0111u drugim prednostima re\u017eima stroge izolacije spominje se smanjenje fragmentacije memorije, u\u010dinkovitije vra\u0107anje memorije operativnom sustavu, minimaliziranje utjecaja sakupljanja sme\u0107a i intenzivnih izra\u010duna na stranice u drugim procesima, pove\u0107anje u\u010dinkovitosti optere\u0107enja raspodjele na razli\u010dita CPU jezgra, pove\u0107anje stabilnosti (pad procesa koji obra\u0111uje iframe ne povla\u010di za sobom glavni sajt i druge kartice). <\/p>\n

Me\u0111u poznatim problemima koji se javljaju prilikom kori\u0161tenja Fission-a, isti\u010de se zna\u010dajno pove\u0107anje potro\u0161nje memorije, X11 veza i deskriptora datoteka pri otvaranju velikog broja kartica, kao i prekid rada nekih dodataka, nestanak sadr\u017eaja iframe-a pri ispisi i pozivu funkcije za snimanje zaslona, smanjenje u\u010dinkovitosti ke\u0161iranja dokumenata s iframe-om, gubitak sadr\u017eaja ispunjenih, ali ne poslanih obrazaca pri vra\u0107anju sesije nakon kvara.
\n
Izvor: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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\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\udd47Kompanija Mozilla predstavila re\u017eim stroge izolacije sajtova za Firefox | ProHoster","description":"Kompanija Mozilla je najavila po\u010detak masovnog testiranja u no\u0107nim izdanjima i beta izdanjima Firefox-a re\u017eima stroge izolacije sajtova, koji se razvijao u okviru projekta Fission.","canonical_url":"https:\/\/prohoster.info\/hr\/blog\/news\/kompaniya-mozilla-predstavila-rezhim-strogoj-izolyaczii-sajtov-dlya-firefox","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"hr_HR","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 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