Rated 1 out of 5 stars

by Dan Moorehead | PowerAccess (PowerAccess.net) on June 19, 2017 ·

Button's aren't available to add to App menu or toolbars, at least with Firefox Developer Edition (v55 x64) with e10s Multi-Process enabled. ProfileSwitcher is an alternative that does work, though doesn't have option to open the profile folder and the separate Open Profile Folder extension doesn't work with my configuration.