Skip to main content
Switch language
Skip to search

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.

- Customize this article
  
  Firefox

Forum response - 64 bit Firefox on Windows

Last updated: 10/19/17

100% of users voted this helpful

64-bit Firefox is now the default on 64-bit Windows because it is a lot more stable than running 32-bit Firefox.

For more information, see the Mozilla blog post on 64-bit Firefox and the article How to opt out of 32-bit Firefox migration to 64-bit.

These fine people helped write this article:

AliceWyman, Joni

Illustration of hands

Volunteer

Grow and share your expertise with others. Answer questions and improve our knowledge base.