I mostly use twitch.tv and youtube. I think twitch uses Flash while youtube is on HTML5. Just noticed that netflix has switched to creating an entire new window in the task bar when it previously did the tab thing as well. Don't know though whether netflix is flash or HTML5 based.

Since updating to version 31.0.1889.99 setting streams to full screen doesn't create a new task bar tab. This makes it impossible to access the other tabs in the browser window. This screenshot might help explain the issue:

http://imgur.com/Rid7P99 [1]

I want Opera to create a second tab like Steam has in the screenshot when I watch anything in fullscreen. It did this before but I have no idea how to change this back. I'm running Windows 8.1. Any ideas are highly appreciated.
Thanks.