+++ This bug was initially created as a clone of Bug #877024 +++ Since Bug 887454 was fixed, youtube videos are played back at youtube web site on Browser App. When some video is played back, the web site scrolling is very difficult. URL: http://www.youtube.com/watch?v=xF8Qp_CBGUA STR [1] Visit the url [2] Start a video playback [3] Scroll the web site by flick up/down. If flick is not fast(relatively slow), it is sometimes very difficult to scroll to intended position.

Before making a blocking decision, triage would like to see engineering analysis.

(In reply to Alex Keybl [:akeybl] from comment #1) > Before making a blocking decision, triage would like to see engineering > analysis. Roc - Anthony is out until July 29th, so can you provide engineering input here?

I saw this several times over the last week, but I am unable to repro on today's build.

It sounds like an APZC problem. I can look into it, but Chris Lord might be able to help too.

(In reply to Robert O'Callahan (:roc) (Mozilla Corporation) from comment #4) > It sounds like an APZC problem. I can look into it, but Chris Lord might be > able to help too. Hmm...I'm wondering if this is related to the problems we're seeing in bug 892088 potentially.

Sotaro, the patch in bug 880578 fixes bug 892088 for me. Can you check if it fixes this bug for you too? I'm not sure if what you're describing is the same as 892088 or not.

Yeah, bug 880578 fixes this bug. I confirmed v1.1 hamachi and v1.1 leo.

Just for a reference, attached the video the symptom happens.

duping this per comment 7. Please reopen if not the case.