Best Way to Remove Shopglider Deals - Stop ShopGliderDeal Pop-ups

Help, cannot delete Shopglider Deals, and it's putting up annoying dialog boxes everywhere. I've searched the extensions for anything I don't recognize but it's all normal stuff. How is it possible for this thing to infest Chrome without leaving a trace? Any guidance would be appreciated. 

If you receive pop-up ads from Shopglider Deals while you are surfing the web, it is safer for you to ignore those ads no matter they are about online stores coupons or competitive prices of the products that you are viewing, and then close the current windows as soon as possible. This is because if you click on those ads come from Shopglider Deals, your browser will be redirected to unsafe websites that may be compromised by computer hacker or contain some PC viruses like Trojan horse, worms, spyware, etc.