Offers4U adware

I found a couple of other topics on this subject, but they didn't help me.

Anyway, just today I found some very annoying adware called Offers4U that pops up whenever I use eBay, Amazon, etc. As recommended by anti-adware sites, I went through each of my extensions one by one. They all checked out, until I tested SaveFrom.net. Unfortunately, it seems to be the extension that the adware is hiding in. This is really bad news, considering how I've been using it for years and depend on it pretty heavily. I've tried uninstalling and reinstalling it along with restarting Chrome, but nothing's helped.

I'd really hate to have to uninstall SaveFrom, because it's by far one of my favorite extensions. But I also really don't want to be accosted with stupid ads all the time. Is there a way this can be fixed?