Step 1: Head over to this page of Mozilla. Please make sure that you are running 64-bit Windows 10/8/7 (see how to check if you are running 32 or 64-bit Windows 10) before attempting to upgrade Firefox 32-bit to 64-bit. Important: Firefox 64-bit cannot be installed on 32-bit Windows. Here is how to upgrade Firefox 32-bit install to Firefox 64-bit on a Windows PC.

Upgrade Firefox 32-bit to 64-bit without reinstalling Since the first method is easy and everyone knows about it, we are talking only about the second method in this article. The second method is for users who would like to upgrade to 64-bit without uninstalling the current Firefox 32-bit. The first method is to uninstall Firefox 32-bit and then install Firefox 64-bit by manually downloading Firefox 64-bit offline installer. There are two ways to upgrade Firefox 32-bit to Firefox 64-bit on a Windows PC.

NOTE: Refer to our 3 ways to check if you are running 32 or 64-bit Firefox guide to make sure that you are running 32-bit Firefox before attempting to upgrade! Because of this, users have been running 32-bit Firefox on Windows 64-bit although the Firefox 64-bit has been out there for more than a year now.Ī lot of users who want to upgrade 32-bit Firefox install to 64-bit don’t want to uninstall the 32-bit Firefox first and then install the 64-bit Firefox as doing so will remove saved passwords, bookmarks, and browsing history. The web installer of Firefox automatically downloads and installs the 32-bit Firefox even on a 64-bit Windows PC. A large number of Mozilla Firefox users are not aware of the availability of Firefox 64-bit.

Download mozilla firefox for pc 64 bit