Lately, on YouTube, after watching a few video's, a banner pop-up comes up and freeze's the page. It's a Yellow Banner the a robot in the left corner. It says " A web page is slowing down our browser. What you you like to do?" On the far right, it has two box's. "Stop It" or "Wait" then an "X"...I don't click on anything, I just shut the page. It gives me this warning when I only have ONE page open, so it smells of scam to me. Thanks. It's no big deal, just annoying....otherwise FireFox is GREAT and I would Never use anything else.