Firefox/Win64: Difference between revisions

Firefox/Win64 (view source)

51 bytes added , 29 September 2016

→‎Objective: Clarify 64-bit trade-offs

Confirmed users

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 Make 64-bit Firefox the default version for new and existing eligible users to reduce our OOM crash rate, increase performance, and improve security (ASLR).
-Users are eligible for a 64-bit default if they are running 64-bit Windows 7+ and have 4+ GiB RAM. 32-bit Firefox running on 64-bit Windows OS can use up to 3,800 MiB of virtual address space (4 GiB minus overhead from virtual address space fragmentation). Thus users with less than 3,800 MiB of physical memory would see little benefit from using 64-bit Firefox.
+Users are eligible for a 64-bit default if they are running 64-bit Windows 7+ and have at least 3,800 MiB RAM. 32-bit Firefox running on 64-bit Windows OS can use about 3,800 MiB of virtual address space (4 GiB minus overhead from virtual address space fragmentation). For users with less than 4 GiB of physical memory, there is a trade-off between the larger virtual address space and the overhead of 64-bit code.
 = Plan =