Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:54.0) Gecko/20100101 Firefox/54.0 Build ID: 20170215030342 [Affected versions]: Nightly 54.0a1 [Affected platforms]: All platforms: Ubuntu 16.04, Mac OS X 10.11, Windows 10, Windows 7 [Steps to reproduce]: 1.Launch Nightly 54.0a1 with a new profile 2.Set "dom.forms.datetime" and "dom.forms.datetime.timepicker" pref to True in about:config 3.In the URL bar enter "data:text/html, <input type="date">" 4.Click to trigger picker 5.Select date using picker [Expected result]: The values selected with picker should be changed accordingly in the input box only after picker is collapsed. [Actual result]: The values selected with picker are changed accordingly in the input box. [Note] Reproducible also for month/year picker.

Moving to p3 because no activity for at least 1 year(s). See https://github.com/mozilla/bug-handling/blob/master/policy/triage-bugzilla.md#how-do-you-triage for more information