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!

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

Upgrade 64bit version

more options

Hi, i want to ask about Firefox 64bit. Im using Firefox Win 8.1 version 32bit but now i want to use 64-bit version. Should i uninstall old version to install 64 bit version??? Thanks you so much ^^

Hi, i want to ask about Firefox 64bit. Im using Firefox Win 8.1 version 32bit but now i want to use 64-bit version. Should i uninstall old version to install 64 bit version??? Thanks you so much ^^

Chosen solution

Hello,

If you install the 64-bit version it should override your current 32-bit version. So, there's no need to uninstall your 32-bit version first.

Read this answer in context 👍 20

All Replies (1)

more options

Chosen Solution

Hello,

If you install the 64-bit version it should override your current 32-bit version. So, there's no need to uninstall your 32-bit version first.