NB: this not same as Bug #449358 Steps: 1. ensure Javascript is enabled 2. Goto URL http://simon.html5.org/test/html/semantics/video/008.htm (or the attached modified testcase) Result:- User dont see controls Expected:- There should be controls on video element.

This worksforme now, anybody else have this problem still?

works for me too, whereas it didn't used to work for me before.

may be fixed after patch related to bug 448909 or bug 449522 We need to put this in test suite

Bug 448909 fixed this, is seemed to be a problem caused by having the XBL binding removed when disabling controls (now the binding is just always active).

simple test

I don't think this test actually tests what you want. hasAttribute('controls') returning true doesn't mean controls are actually visible. Maybe we could have a reftest that compares two video elements which should both be showing controls, where one of the tests adds the 'controls' attribute dynamically.

Comment on attachment 381008 [details] [diff] [review] simple mochitest needs to be updated per comment #6