The 64-bit plugin process crash rate is 50% less on 64-bit systems with 2 Gigabytes of RAM, and 80% less on systems with more than 2 Gigabytes of RAM.Īdditional information on the migration to 64-bit Firefox on Windows is available on the Mozilla Wiki website.The browser process crash rate of 64-bit Firefox installations on Windows with 2 Gigabytes of RAM is the same as 32-bit versions of the browser, and about 20% less on systems with more than 2 Gigabytes.The content process crash rate of 64-bit Firefox installations on Windows with 2GB of RAM is the same as on 32-bit systems on systems, and 20% less on systems with more than 2 Gigabytes of RAM.About 8% of Windows users run systems with 2 Gigabytes of RAM or less,.Mozilla published some stats that highlight these improvements and changes:

The main reason why Mozilla decided to migrate Firefox users on Windows to 64-bit versions is that running a 64-bit copy of Firefox decreases the out-of-memory crash rate and improves security.ĭownside is that 64-bit versions of Firefox use more memory than 32-bit versions of the web browser.

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