Normally when I buy a PC laptop the first thing I do is update the BIOS via default Windows install, and then blow away Windows with a fresh Linux (Fedora) install.
That's the case now, just bought a Dell Precision M4700, updated the BIOS and now, seeing a bunch of firmware updates via Dell support site, am not sure if it's worth the bother (i.e. if supplied firmware will only benefit a Windows OS).
So, is firmware independent of OS? If yes, then presumably a Linux install can take advantage of the firmware updates.