The Mozilla person who marked this wontfix summed it up pretty well, in my opinion: > hi, the distribution folder is a way for third-parties to bundle/modify t

The Mozilla person who marked this wontfix summed it up pretty well, in my opinion: > hi, the distribution folder is a way for third-parties to bundle/modify the browser - when a user is paving over a firefox installation with a setup file provided by mozilla, the assumption/signal is, that they want to receive the plain unmodified version of firefox. that's why the distribution folder is getting removed by default. this is the documented behaviour and if you want to keep the distribution in place when using an installer from mozilla, you'd have to run it with the /RemoveDistributionDir=false parameter: https://firefox-source-docs.mozilla.org/browser/installer/windows/installer/FullConfig.html https://firefox-source-docs.mozilla.org/browser/installer/wi... > so i assume this bug is a wontfix...