User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:56.0) Gecko/20100101 Firefox/56.0 Build ID: 20170713100259 Steps to reproduce: 1. Open DevTools > Network tab (F12) 2. Open page "mozilla.org" 3. Open "Page Info" > Media (Ctrl + I) and compare list of icons in Page Info with requests in Network tab. Actual results: There are icons in Page Info > Media but these icons are not mentioned in Network tab Expected results: All records in Page Info > Media should have corresponding record in Network tab
It also applies to the latest nightly - 56.0a1 (2017-07-13) (64-bit).