We currently use this variable to get a path to the user's directory. This isn't a reliable source for this. http://mxr.mozilla.org/projects-central/source/elm/browser/metro/shell/installscripts/Makefile.in
Actually we don't use this value anymore, this can be removed.
Created attachment 640194 [details] [diff] [review] patch https://hg.mozilla.org/projects/elm/rev/a02d63bf954b This code is only on elm.