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

How do I determine whether I am running on a 64-bit version of Firefox or a 32-bit version of Firefox?

  • 2
  • 1 nwere nsogbu anwere nsogbu a
  • 1 view
  • Nzaghachi ikpeazụ nke the-edmeister

more options

How do I determine whether I am running on a 64-bit version of Firefox or a 32-bit version of Firefox? I only need a solution for this question so I can continue and finish updating my out-of-date plug-ins.

Thank you, Steven Stone

How do I determine whether I am running on a 64-bit version of Firefox or a 32-bit version of Firefox? I only need a solution for this question so I can continue and finish updating my out-of-date plug-ins. Thank you, Steven Stone

All Replies (2)

more options

If you type "about:buildconfig" in the address bar of Firefox, I think you should get that information.

Edit: Bolded for emphasis.

Edeziri site na AJ Godinho

more options

There are no 64-bit versions of Firefox for Windows. The 64-bit versions have been Minefield and Nightly tester builds, never labeled as Firefox.