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

Firefox keeps resetting to 32-bit mode..why?

more options

Have updated FF to 64-bit several times. Once FF is recycled, it resets to 32-bit mode. Running Windows 10, 64-bit mode, 16Gb ram. Why is this happening?

Have updated FF to 64-bit several times. Once FF is recycled, it resets to 32-bit mode. Running Windows 10, 64-bit mode, 16Gb ram. Why is this happening?

Chosen solution

Define "Recycled"

You would have to goto add/remove programs, uninstall firefox then be sure to download the correct 64bit version: https://download.mozilla.org/?product=firefox-stub&os=win64&lang=en-US

As I believe 32bit versions kept on downloading 32bit versions in error as Windows held on to the 32bit version longer compared to Linux and OSX

Read this answer in context 👍 1

All Replies (1)

more options

Chosen Solution

Define "Recycled"

You would have to goto add/remove programs, uninstall firefox then be sure to download the correct 64bit version: https://download.mozilla.org/?product=firefox-stub&os=win64&lang=en-US

As I believe 32bit versions kept on downloading 32bit versions in error as Windows held on to the 32bit version longer compared to Linux and OSX