Turns out it is quite easy; edit OnBeforeRequest to add:
if (!oSession.HostnameIs("www.google.com")) {oSession["ui-hide"] = "yup";}
filters to google, for example.
(original answer)
I honestly don't know if this is something that Fiddler has built in (I've never tried), but it is certainly something that Wireshark will do pretty easily - of course, you get different data (in particular for SSL) - so YMMV.
You can filter the requests using the filter tab in fiddler. Please see screenshots below. If you are using google chrome, be sure to use the correct process id in fiddler(from google chrome).