mozilla/pdf.js — pull request #4217 by Rob--W (2014-01-29 17:45:02+00:00)
Title: Print shortcut: Ctrl + (Shift +) P only

The previous version interfered with the full screen shortcut (Ctrl + Alt + P).

The new version only intercepts Cmd/Ctrl + P (all browsers),
and Cmd/Ctrl + Shift + P in Chrome / Opera (Presto and Chromium).