Reproduced on Nightly41.0a1/40.0a2 e10s on, HWA on/off, FlashPlayer18.0.0.160. Not reproduced if disabled e10s. Steps To Reproduce: 1. Open http://news.so-net.ne.jp/article/detail/1110632/?nv=c_article_related_text 2. Start Video 3. Scroll to bottom (video should be placed out of view port) 4. Click any link 5. Wait to completion of page loading 6. Attempt to mouse wheel scroll 7. Repeat from step 1 if necessary Actual Results Mouse wheel scroll stops working. After approx. 30 seconds or more, the mouse wheel scroll restore function. Expected Results: Mouse wheel scroll should be working properly.

Regression window: m-c: https://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=66cdb18f36da&tochange=64f1fb1e2f38 m-i: https://hg.mozilla.org/integration/mozilla-inbound/pushloghtml?fromchange=90731dbaab2d&tochange=6c63b3b1de80 Triggered by: Bug 669200

Reproduced on windows7 and windows8.1.

> After approx. 30 seconds or more, the mouse wheel scroll restore function. This is wrong. Switch to another tab and switch back to the original tab, then the mouse wheel scroll restore function.

I can reproduce this using the steps provided. http://news.so-net.ne.jp/article/detail/1119202/?nv=r_cmn_movie

I'm not seeing this anymore using apz. Alice, would you mind retesting when you have a chance?

(In reply to Jim Mathies [:jimm] from comment #5) > I'm not seeing this anymore using apz. Alice, would you mind retesting when > you have a chance? Yep, It works.