Strange Cookie reaction from javascript

I was using Javascript injections to mess with the cookies in a challenge like I was supposed to since the Firefox add-on was not helping much in changing them no matter how many times I did it.

But the point is after I tried to change the cookies to no avail. I opened up the cookie info again to see the list EXPLODE. The original cookies along with one ad and mostly other ads not even displayed on the page and one thing that tripped my brain in the listing

http://cache.trafficmp.com/adv/gadget/ig_080819.html

that popped up with several cookies of its own some with extremely long jarbled values What the hell just happened?

Or am I just crazy?

I would hope so, but then again, maybe it will be a good to stumble onto something different. Eh I'm just reaching out for nothing, who the hell am I kidding?