{"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\/ro\/blog\/news\/kompaniya-mozilla-predstavila-rezhim-strogoj-izolyaczii-sajtov-dlya-firefox","title":{"rendered":"Compania Mozilla a prezentat modul strict de izolare a site-urilor pentru Firefox","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Compania Mozilla a anun\u021bat \u00eenceputul test\u0103rii pe scar\u0103 larg\u0103 a modului de izolare strict\u0103 a site-urilor \u00een versiunile nightly \u0219i beta ale Firefox, dezvoltat \u00een cadrul proiectului Fission. Acest mod extinde utilizarea arhitecturii multiproces \u2014 \u00een loc de un grup fix de procese, pentru fiecare site se creeaz\u0103 un proces separat. Activarea modului Fission se face prin variabila \u201efission.autostart=true\u201d \u00een about:config sau pe pagina about:preferences#experimental. <\/p>\n

Amintim c\u0103 modelul multi-proces utilizat \u00een Firefox p\u00e2n\u0103 \u00een prezent implica lansarea unui pool de procese de gestionare: din start, 8 procese principale pentru gestionarea con\u021binutului, 2 procese suplimentare neprivilegiate pentru con\u021binut web \u0219i 4 procese auxiliare pentru extensii, interac\u021biunea cu GPU-ul, opera\u021biuni de re\u021bea \u0219i decodarea datelor multimedia. Distribu\u021bia tab-urilor pe procese se f\u0103cea aleatoriu, de exemplu, trat\u00e2nd un site bancar \u0219i o resurs\u0103 discutabil\u0103 \u00eentr-un singur proces. <\/p>\n

Noul mod mut\u0103 \u00een proces separat gestionarea fiec\u0103rui site, separ\u00e2ndu-le nu pe tab-uri, ci pe domenii, ceea ce permite izolare suplimentar\u0103 a con\u021binutului scripturilor externe \u0219i a blocurilor iframe. Pentru gestionarea separat\u0103 a subdomeniilor serviciilor tipice asociate cu diferite site-uri, se aplic\u0103 o separare nu pe baza formelor formale, ci pe baza celor efective (eTLD). domeniilor de v\u00e2rf<\/a>, marcate \u00een lista Public Suffix (adic\u0103 site-urile \u201ea.github.io\u201d \u0219i \u201eb.github.io\u201d vor fi gestionate \u00een procese diferite). <\/p>\n

Modul de izolare strict\u0103 permite protejarea \u00eempotriva atacurilor prin canale externe, de exemplu, cele legate de vulnerabilit\u0103\u021bile de tip Spectre, care pot conduce la scurgeri de informa\u021bii \u00een cadrul unui singur proces. Scurgerea de date confiden\u021biale gestionate \u00een acela\u0219i proces este posibil\u0103 atunci c\u00e2nd un cod extern nerecomandat este executat \u00een ma\u0219inile virtuale cu JIT. virtu\u00e1lne ma\u0161ini<\/a>\u00cen contextul browserelor web, codul JavaScript mali\u021bios de pe un site poate ob\u021bine informa\u021bii despre parole, chei de acces \u0219i numere de carduri de credit introduse pe un alt site, procesat \u00een acela\u0219i proces. Ini\u021bial, pentru a se proteja \u00eempotriva atacurilor prin canale externe, dezvoltatorii browserelor au limitat precizia temporizatorului \u0219i au blocat accesul la API-ul SharedArrayBuffer, dar aceste m\u0103suri doar au complicat \u0219i \u00eencetinit efectuarea atacului (de exemplu, recent a fost propus\u0103 o metod\u0103 de extragere a datelor din cache-ul CPU care func\u021bioneaz\u0103 f\u0103r\u0103 JavaScript). <\/p>\n

Printre alte beneficii ale modului de izolare strict\u0103 se num\u0103r\u0103 reducerea fragment\u0103rii memoriei, o mai eficient\u0103 returnare a memoriei c\u0103tre sistemul de operare, minimizarea impactului garbage collection-ului \u0219i al calculului intensiv asupra paginilor din alte procese, cre\u0219terea eficien\u021bei distribu\u021biei sarcinii pe nucleele CPU, stabilitatea sporit\u0103 (crash-ul procesului care gestioneaz\u0103 iframe-ul nu va afecta site-ul principal \u0219i alte tab-uri). <\/p>\n

Printre problemele cunoscute care apar la utilizarea Fission se num\u0103r\u0103 cre\u0219terea semnificativ\u0103 a consumului de memorie, a conexiunilor X11 \u0219i a descriptorilor de fi\u0219iere atunci c\u00e2nd se deschid un num\u0103r mare de tab-uri, precum \u0219i func\u021bionarea defectuoas\u0103 a unor extensii, dispari\u021bia con\u021binutului iframe-urilor \u00een timpul imprim\u0103rii \u0219i activarea func\u021biei de captur\u0103 de ecran, sc\u0103derea eficien\u021bei cache-ului documentelor cu iframe-uri, pierderea con\u021binutului formularelor completate, dar ne trimise \u00een timpul restaur\u0103rii sesiunii dup\u0103 un crash.
\n
Sursa: opennet.ro<\/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 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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\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\udd47Compania Mozilla a prezentat modul de izolare strict\u0103 a site-urilor pentru Firefox | ProHoster","description":"Compania Mozilla a anun\u021bat \u00eenceputul test\u0103rii pe scar\u0103 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