I have nothing extra installed yet & I don't have Sync enabled, but I think I've found the cause of what makes the page appear.

http://puu.sh/9EOUj/e8fef88564.png

I get this message on Skype often whenever an advertisement changes & whenever I click 'OK,' the xxyyzz page pops up & it shows up only on Opera Next.

I wonder if there's a way to get rid of this page from popping up after clicking okay on the Skype pop-up, though...

I also have MalwareBytes, but I haven't tried it yet.

This is my first time posting about browser-related things & I'm new to technical forums/discussions, so sorry about not giving much details about it, but I'll provide them.

System: Windows 7 Professional

Browser: Opera Next (which is why I posted this here)

Version: 23.0.1522.14

It says 'opera://xxyyzz/ is not available' when it pops up.

Here's what the tab shows: http://puu.sh/9EBDq/38cc767b4e.png

I've used McAfee & Avast! to scan for viruses, but no results of threats came back.

Hope the details provided are good enough.

I keep on seeing this tab pop up every few hours & I'm not sure what it is & why it's popping up.