NSS question about license

Hi,

I believe NSS is licensed under MPL, GPL and LGPL. Since GPL license has
more restrictions in terms of reusing the code and publishing, how much of
NSS code is licensed under GPL? Is it possible that I could exclude only the
files licensed under GPL and still obtain the major NSS features ? If yes
what are the list of files that I have to excluded due to GPL license.

Regards,
Shailen