Seeven Byakko

Well I just experienced this bug with Facebook and 9gag.com at the same time.

I think I've seen this bug on a Dailymotion video page once.

It seems that this bug doesn't occur on Firefox, after a few tries.

Chrome used the HTML5 player on YouTube. I switched to the Flash player with the extension you provided and the bug occurred once again. As this bug occurs with simple Google search pages, I don't think it's only because of videos. Maybe a problem with Google pages

The bug keeps occurring even on the portable version of Chrome.

I will try the portable version

I have the latest version : Version 39.0.2171.71 m

Yes, I did not sign to Chrome, nor to my Google Account.

I just renamed it and launched Chrome, which created a new Default folder

@Vinayak: I have already done it, that's what I meant when I said I deleted my Default user profile. The problem persists.

@Vinayak: I installed Turn Off the Lights a very long time ago and it never bothered me. I didn't install a new extension very recently. Moreover, I started Chrome with a new user profile, without any extension installed, and I still got this bug.

@Vinayak: I added the Speed Tracer and the Profiler results on my post. Thanks for the demo by the way.

@Vinayak: chrome://policy shows no rule.

@DavidPostill: I started Chrome after deleting my Default profile, then I opened some YouTube tabs, and I still got the popup. (Sorry for the late answer)

@DavidPostill: Hi, 1/ Yes, the bug even occurs after restarting the computer. 2/ Yes, I cleared the Chrome cache also. The bug still occurs.