In the window that open go to 'Shortcut' tab and in target field write 'D:\portapps\FirefoxPortable-48.0.2\FirefoxPortable.exe -P 'My Profile' -no-remote, so it will be 'your file path -P 'My Profile' -no-remote'. Create its shortcut on desktop, then right click it and go to Properties. Install latest firefox quantum in your pc then download portable firefox older version from here and just extract it any where in your pc.
Was also using fireshot which is available for new version too but having limited features. Hi guys the only solution at the moment is using two version of firefox altogether, I was using many very useful addons with firefox like firebug, Reminderfox, colorzilla etc.
