May be it's beacuse Companion works from installed roms (updating), and Xperifirm reads the roms that are complete standalone from sony servers. So, when the new (updating) roms will be released as Standalone ROM'S, they will be available on the same source that Xperifirm reads. To soon to complaint.Apparently Sony PC Companion uses direct streaming for their newer releases. I'll see if I can do something about it.