Mozilla has revealed that 64-bit Firefox will soon become the default build for 64-bit Windows versions. In the near future, users whose PCs fit the hardware requirement will be migrated to Firefox 64-bit automatically.
- With Firefox 55 (August 8, 2017), the Windows stub installer will default to 64-bit Firefox for eligible users (64-bit Windows and 2 GB+ RAM).
- With Firefox 56 (September 26, 2017), existing eligible 32-bit Firefox users will be migrated to 64-bit. About 70% of Windows Firefox users currently run 32-bit Firefox build on 64-bit Windows. Nearly all of these users can be migrated to 64-bit Firefox.
Interested users can read about the progress HERE.
Personally, I use Firefox 64-bit since quite a long time on both Linux and Windows. However, most of the time, I am using it on Linux. My distro provides the 64-bit version of Firefox by default, and it does its work perfectly. I have not faced a single issue for at least a year.
Firefox is a unique browser with a long and impressive history. It is an open source project and was one of the first browsers with support for building powerful extensions quickly and easily. It is special because it is the only modern browser not based on Chromium. It has a unique set of features and add-ons which are not available for other mainstream browsers.
I switched to Mozilla Firefox from classic Opera 12 and still prefer it over a bunch of Chromium clones. While Vivaldi looks promising, I can't stand it for my daily browsing tasks because of its performance issues. Firefox is unbeatable, mostly thanks to its XUL add-ons and well designed multi-profile implementation. Pretty soon though, XUL addons are going to be discontinued and replaced with WebExtensions in Firefox.
According to Mozilla, 64-bit Firefox will bring extra stability and security for users on 64-bit Windows versions, so they should benefit from this change.