Firefox 4 постоянно шуршит винтом

После того как перешел с 3 на 4 бросилось в ~~глаза~~ уши то, что леса стала активно шуршать винтом во время загрузки страницы, хотя кэш отключен (оставлен только в памяти). С помощью process monitor выяснил, что после каждой загруженной страницы леса записывает на диск 1 мегабайт данных, причем в обход вендового кэша. Вот подробная инфа:

скрытый текст

"Process Name","Operation","Path","Result","Detail"
"firefox.exe","WriteFile","C:\Users\Alex\AppData\Roaming\Mozilla\Firefox\Profiles\36j66p0b.default\cookies.sqlite-wal","SUCCESS","Offset: 426 328, Length: 24"
"firefox.exe","WriteFile","C:\Users\Alex\AppData\Roaming\Mozilla\Firefox\Profiles\36j66p0b.default\cookies.sqlite-wal","SUCCESS","Offset: 426 352, Length: 32 768"
"firefox.exe","WriteFile","C:\Users\Alex\AppData\Roaming\Mozilla\Firefox\Profiles\36j66p0b.default\places.sqlite-wal","SUCCESS","Offset: 360 744, Length: 24"
"firefox.exe","WriteFile","C:\Users\Alex\AppData\Roaming\Mozilla\Firefox\Profiles\36j66p0b.default\places.sqlite-wal","SUCCESS","Offset: 360 768, Length: 32 768"
"firefox.exe","WriteFile","C:\Users\Alex\AppData\Roaming\Mozilla\Firefox\Profiles\36j66p0b.default\places.sqlite-wal","SUCCESS","Offset: 393 536, Length: 24"
"firefox.exe","WriteFile","C:\Users\Alex\AppData\Roaming\Mozilla\Firefox\Profiles\36j66p0b.default\places.sqlite-wal","SUCCESS","Offset: 393 560, Length: 32 768"
"firefox.exe","WriteFile","C:\Users\Alex\AppData\Roaming\Mozilla\Firefox\Profiles\36j66p0b.default\places.sqlite-wal","SUCCESS","Offset: 426 328, Length: 24"
"firefox.exe","WriteFile","C:\Users\Alex\AppData\Roaming\Mozilla\Firefox\Profiles\36j66p0b.default\places.sqlite-wal","SUCCESS","Offset: 426 352, Length: 32 768"
"firefox.exe","WriteFile","C:\Users\Alex\AppData\Roaming\Mozilla\Firefox\Profiles\36j66p0b.default\places.sqlite-wal","SUCCESS","Offset: 459 120, Length: 24"
"firefox.exe","WriteFile","C:\Users\Alex\AppData\Roaming\Mozilla\Firefox\Profiles\36j66p0b.default\places.sqlite-wal","SUCCESS","Offset: 459 144, Length: 32 768"
"firefox.exe","WriteFile","C:\Users\Alex\AppData\Roaming\Mozilla\Firefox\Profiles\36j66p0b.default\places.sqlite-wal","SUCCESS","Offset: 491 912, Length: 24"
"firefox.exe","WriteFile","C:\Users\Alex\AppData\Roaming\Mozilla\Firefox\Profiles\36j66p0b.default\places.sqlite-wal","SUCCESS","Offset: 491 936, Length: 32 768"
"firefox.exe","WriteFile","C:\Users\Alex\AppData\Roaming\Mozilla\Firefox\Profiles\36j66p0b.default\places.sqlite-wal","SUCCESS","Offset: 524 704, Length: 24"
"firefox.exe","WriteFile","C:\Users\Alex\AppData\Roaming\Mozilla\Firefox\Profiles\36j66p0b.default\places.sqlite-wal","SUCCESS","Offset: 524 728, Length: 32 768"
"firefox.exe","WriteFile","C:\Users\Alex\AppData\Roaming\Mozilla\Firefox\Profiles\36j66p0b.default\places.sqlite-wal","SUCCESS","Offset: 557 496, Length: 24"
"firefox.exe","WriteFile","C:\Users\Alex\AppData\Roaming\Mozilla\Firefox\Profiles\36j66p0b.default\places.sqlite-wal","SUCCESS","Offset: 557 520, Length: 32 768"
"firefox.exe","WriteFile","C:\Users\Alex\AppData\Roaming\Mozilla\Firefox\Profiles\36j66p0b.default\places.sqlite-wal","SUCCESS","Offset: 590 288, Length: 24"
"firefox.exe","WriteFile","C:\Users\Alex\AppData\Roaming\Mozilla\Firefox\Profiles\36j66p0b.default\places.sqlite-wal","SUCCESS","Offset: 590 312, Length: 32 768"
"firefox.exe","WriteFile","C:\Users\Alex\AppData\Roaming\Mozilla\Firefox\Profiles\36j66p0b.default\places.sqlite-wal","SUCCESS","Offset: 623 080, Length: 24"
"firefox.exe","WriteFile","C:\Users\Alex\AppData\Roaming\Mozilla\Firefox\Profiles\36j66p0b.default\places.sqlite-wal","SUCCESS","Offset: 623 104, Length: 32 768"
"firefox.exe","WriteFile","C:\Users\Alex\AppData\Roaming\Mozilla\Firefox\Profiles\36j66p0b.default\places.sqlite-wal","SUCCESS","Offset: 360 448, Length: 299 008, I/O Flags: Non-cached, Paging I/O, Synchronous Paging I/O, Priority: Normal"
"firefox.exe","WriteFile","C:\Users\Alex\AppData\Roaming\Mozilla\Firefox\Profiles\36j66p0b.default\places.sqlite","SUCCESS","Offset: 1 245 184, Length: 32 768"
"firefox.exe","WriteFile","C:\Users\Alex\AppData\Roaming\Mozilla\Firefox\Profiles\36j66p0b.default\places.sqlite","SUCCESS","Offset: 3 604 480, Length: 32 768"
"firefox.exe","WriteFile","C:\Users\Alex\AppData\Roaming\Mozilla\Firefox\Profiles\36j66p0b.default\places.sqlite","SUCCESS","Offset: 3 670 016, Length: 32 768"
"firefox.exe","WriteFile","C:\Users\Alex\AppData\Roaming\Mozilla\Firefox\Profiles\36j66p0b.default\places.sqlite","SUCCESS","Offset: 4 882 432, Length: 32 768"
"firefox.exe","WriteFile","C:\Users\Alex\AppData\Roaming\Mozilla\Firefox\Profiles\36j66p0b.default\places.sqlite","SUCCESS","Offset: 5 013 504, Length: 32 768"
"firefox.exe","WriteFile","C:\Users\Alex\AppData\Roaming\Mozilla\Firefox\Profiles\36j66p0b.default\places.sqlite","SUCCESS","Offset: 5 210 112, Length: 32 768"
"firefox.exe","WriteFile","C:\Users\Alex\AppData\Roaming\Mozilla\Firefox\Profiles\36j66p0b.default\places.sqlite","SUCCESS","Offset: 5 242 880, Length: 32 768"
"firefox.exe","WriteFile","C:\Users\Alex\AppData\Roaming\Mozilla\Firefox\Profiles\36j66p0b.default\places.sqlite","SUCCESS","Offset: 5 341 184, Length: 32 768"
"firefox.exe","WriteFile","C:\Users\Alex\AppData\Roaming\Mozilla\Firefox\Profiles\36j66p0b.default\places.sqlite","SUCCESS","Offset: 5 373 952, Length: 32 768"
"firefox.exe","WriteFile","C:\Users\Alex\AppData\Roaming\Mozilla\Firefox\Profiles\36j66p0b.default\places.sqlite","SUCCESS","Offset: 5 472 256, Length: 32 768"
"firefox.exe","WriteFile","C:\Users\Alex\AppData\Roaming\Mozilla\Firefox\Profiles\36j66p0b.default\places.sqlite","SUCCESS","Offset: 5 505 024, Length: 32 768"
"firefox.exe","WriteFile","C:\Users\Alex\AppData\Roaming\Mozilla\Firefox\Profiles\36j66p0b.default\places.sqlite","SUCCESS","Offset: 5 865 472, Length: 32 768"
"firefox.exe","WriteFile","C:\Users\Alex\AppData\Roaming\Mozilla\Firefox\Profiles\36j66p0b.default\places.sqlite","SUCCESS","Offset: 5 898 240, Length: 32 768"
"firefox.exe","WriteFile","C:\Users\Alex\AppData\Roaming\Mozilla\Firefox\Profiles\36j66p0b.default\places.sqlite","SUCCESS","Offset: 5 963 776, Length: 32 768"
"firefox.exe","WriteFile","C:\Users\Alex\AppData\Roaming\Mozilla\Firefox\Profiles\36j66p0b.default\places.sqlite","SUCCESS","Offset: 7 307 264, Length: 32 768"
"firefox.exe","WriteFile","C:\Users\Alex\AppData\Roaming\Mozilla\Firefox\Profiles\36j66p0b.default\places.sqlite","SUCCESS","Offset: 7 438 336, Length: 32 768"
"firefox.exe","WriteFile","C:\Users\Alex\AppData\Roaming\Mozilla\Firefox\Profiles\36j66p0b.default\places.sqlite","SUCCESS","Offset: 8 454 144, Length: 32 768"
"firefox.exe","WriteFile","C:\Users\Alex\AppData\Roaming\Mozilla\Firefox\Profiles\36j66p0b.default\places.sqlite","SUCCESS","Offset: 8 650 752, Length: 32 768"
"firefox.exe","WriteFile","C:\Users\Alex\AppData\Roaming\Mozilla\Firefox\Profiles\36j66p0b.default\places.sqlite","SUCCESS","Offset: 8 781 824, Length: 32 768"
"firefox.exe","WriteFile","C:\Users\Alex\AppData\Roaming\Mozilla\Firefox\Profiles\36j66p0b.default\places.sqlite","SUCCESS","Offset: 1 245 184, Length: 32 768, I/O Flags: Non-cached, Paging I/O, Synchronous Paging I/O, Priority: Normal"
"firefox.exe","WriteFile","C:\Users\Alex\AppData\Roaming\Mozilla\Firefox\Profiles\36j66p0b.default\places.sqlite","SUCCESS","Offset: 3 604 480, Length: 32 768, I/O Flags: Non-cached, Paging I/O, Synchronous Paging I/O, Priority: Normal"
"firefox.exe","WriteFile","C:\Users\Alex\AppData\Roaming\Mozilla\Firefox\Profiles\36j66p0b.default\places.sqlite","SUCCESS","Offset: 3 670 016, Length: 32 768, I/O Flags: Non-cached, Paging I/O, Synchronous Paging I/O, Priority: Normal"
"firefox.exe","WriteFile","C:\Users\Alex\AppData\Roaming\Mozilla\Firefox\Profiles\36j66p0b.default\places.sqlite","SUCCESS","Offset: 4 882 432, Length: 32 768, I/O Flags: Non-cached, Paging I/O, Synchronous Paging I/O, Priority: Normal"
"firefox.exe","WriteFile","C:\Users\Alex\AppData\Roaming\Mozilla\Firefox\Profiles\36j66p0b.default\places.sqlite","SUCCESS","Offset: 5 013 504, Length: 32 768, I/O Flags: Non-cached, Paging I/O, Synchronous Paging I/O, Priority: Normal"
"firefox.exe","WriteFile","C:\Users\Alex\AppData\Roaming\Mozilla\Firefox\Profiles\36j66p0b.default\places.sqlite","SUCCESS","Offset: 5 210 112, Length: 65 536, I/O Flags: Non-cached, Paging I/O, Synchronous Paging I/O, Priority: Normal"
"firefox.exe","WriteFile","C:\Users\Alex\AppData\Roaming\Mozilla\Firefox\Profiles\36j66p0b.default\places.sqlite","SUCCESS","Offset: 5 341 184, Length: 65 536, I/O Flags: Non-cached, Paging I/O, Synchronous Paging I/O, Priority: Normal"
"firefox.exe","WriteFile","C:\Users\Alex\AppData\Roaming\Mozilla\Firefox\Profiles\36j66p0b.default\places.sqlite","SUCCESS","Offset: 5 472 256, Length: 65 536, I/O Flags: Non-cached, Paging I/O, Synchronous Paging I/O, Priority: Normal"
"firefox.exe","WriteFile","C:\Users\Alex\AppData\Roaming\Mozilla\Firefox\Profiles\36j66p0b.default\places.sqlite","SUCCESS","Offset: 5 865 472, Length: 65 536, I/O Flags: Non-cached, Paging I/O, Synchronous Paging I/O, Priority: Normal"
"firefox.exe","WriteFile","C:\Users\Alex\AppData\Roaming\Mozilla\Firefox\Profiles\36j66p0b.default\places.sqlite","SUCCESS","Offset: 5 963 776, Length: 32 768, I/O Flags: Non-cached, Paging I/O, Synchronous Paging I/O, Priority: Normal"
"firefox.exe","WriteFile","C:\Users\Alex\AppData\Roaming\Mozilla\Firefox\Profiles\36j66p0b.default\places.sqlite","SUCCESS","Offset: 7 307 264, Length: 32 768, I/O Flags: Non-cached, Paging I/O, Synchronous Paging I/O, Priority: Normal"
"firefox.exe","WriteFile","C:\Users\Alex\AppData\Roaming\Mozilla\Firefox\Profiles\36j66p0b.default\places.sqlite","SUCCESS","Offset: 7 438 336, Length: 32 768, I/O Flags: Non-cached, Paging I/O, Synchronous Paging I/O, Priority: Normal"
"firefox.exe","WriteFile","C:\Users\Alex\AppData\Roaming\Mozilla\Firefox\Profiles\36j66p0b.default\places.sqlite","SUCCESS","Offset: 8 454 144, Length: 32 768, I/O Flags: Non-cached, Paging I/O, Synchronous Paging I/O, Priority: Normal"
"firefox.exe","WriteFile","C:\Users\Alex\AppData\Roaming\Mozilla\Firefox\Profiles\36j66p0b.default\places.sqlite","SUCCESS","Offset: 8 650 752, Length: 32 768, I/O Flags: Non-cached, Paging I/O, Synchronous Paging I/O, Priority: Normal"
"firefox.exe","WriteFile","C:\Users\Alex\AppData\Roaming\Mozilla\Firefox\Profiles\36j66p0b.default\places.sqlite","SUCCESS","Offset: 8 781 824, Length: 32 768, I/O Flags: Non-cached, Paging I/O, Synchronous Paging I/O, Priority: Normal"
"firefox.exe","WriteFile","C:\Users\Alex\AppData\Roaming\Mozilla\Firefox\Profiles\36j66p0b.default\sessionstore-1.js","SUCCESS","Offset: 0, Length: 32 768, Priority: Normal"
"firefox.exe","WriteFile","C:\Users\Alex\AppData\Roaming\Mozilla\Firefox\Profiles\36j66p0b.default\sessionstore-1.js","SUCCESS","Offset: 32 768, Length: 32 768, Priority: Normal"
"firefox.exe","WriteFile","C:\Users\Alex\AppData\Roaming\Mozilla\Firefox\Profiles\36j66p0b.default\sessionstore-1.js","SUCCESS","Offset: 65 536, Length: 32 768"
"firefox.exe","WriteFile","C:\Users\Alex\AppData\Roaming\Mozilla\Firefox\Profiles\36j66p0b.default\sessionstore-1.js","SUCCESS","Offset: 98 304, Length: 32 768, Priority: Normal"
"firefox.exe","WriteFile","C:\Users\Alex\AppData\Roaming\Mozilla\Firefox\Profiles\36j66p0b.default\sessionstore-1.js","SUCCESS","Offset: 131 072, Length: 20 282"
"firefox.exe","WriteFile","C:\Users\Alex\AppData\Roaming\Mozilla\Firefox\Profiles\36j66p0b.default\sessionstore-1.js","SUCCESS","Offset: 0, Length: 151 552, I/O Flags: Non-cached, Paging I/O, Synchronous Paging I/O, Priority: Normal"
"firefox.exe","WriteFile","C:\Users\Alex\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\4OBP47MCCYC01472KOIX.temp","SUCCESS","Offset: 0, Length: 4 096, Priority: Normal"
"firefox.exe","WriteFile","C:\Users\Alex\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\4OBP47MCCYC01472KOIX.temp","SUCCESS","Offset: 4 096, Length: 1 217, Priority: Normal"