[RainyDayTmrw]

That's surprising. Why is there such a comparatively large number using 32-bit Firefox on 64-bit Windows?

[ars]

If they are like me, they simply never realized they needed to re-install Firefox after upgrading the OS.

Mozilla should try to automate this switch where the system is compatible to it.

[bmicraft]

Some people are under the misapprehension that 32-bit programs need less ram, which might explain that, but that's still a large number regardless.

[niutech]

It's not a mistake, it's a fact: https://www.ghacks.net/2016/01/03/32-bit-vs-64-bit-browsers-...