Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

I have Windows 7-64bit with Firefox 32bit browser installed. Will I notice an improvement if I upgrade to Firefox 64-bit?

  • 1 reply
  • 1 has this problem
  • 10 views
  • Last reply by cor-el

more options

Currently I have Windows 7 64-bit with 3GB RAM running the latest version of Firefox 51.0.1 (32-bit). When I start Firefox I have two instances of firefox.exe *32.exe in my task manager processes. Would I gain any added performance by upgrading to Firefox 64-bit version? The two 32-bit .exe files generate about 240K memory process. Both services shut-down when I close Firefox--no virus or other issue.

Currently I have Windows 7 64-bit with 3GB RAM running the latest version of Firefox 51.0.1 (32-bit). When I start Firefox I have two instances of firefox.exe *32.exe in my task manager processes. Would I gain any added performance by upgrading to Firefox 64-bit version? The two 32-bit .exe files generate about 240K memory process. Both services shut-down when I close Firefox--no virus or other issue.

All Replies (1)

more options

Is that really 3 GB RAM?

3 GB isn't that much, especially not on a 64 bit platform because that uses up memory twice as fast (allocation size is 64 bits instead of 32 bits on a 32 bit platform). 8 GB should be the minimum on a 64 bit platform, compared to 4 GB on a 32 bit platform. With that low on RAM resources it is probably be best to stay with a 32 bit release.

Seeing multiple (two) processes in current releases is quite normal now that multi-process tabs has been enabled.