Could someone please tell me how to get rid of the deal finder that keeps popping up. It is so anno

[grumpy*cat*rocks]

I'd say you have some sort of malware on your computer as others previously have had similar issues. Suggest you run a virus scan, download Malwarebytes and do a scan with that.

[bright.ton42]

Hate to be negative but it infected Chrome and I tried everything and ended up changing to Firefox.  If you google it you will find lots of solutions but some of them involved downloading some sort of Clean up Tool which I don't trust. 

[grumpy*cat*rocks]

Try looking at these links:

http://malwaretips.com/blogs/deal-finder-virus-removal/

This link recommends the same product I use, Malwarebytes.

http://botcrawl.com/how-to-remove-deal-finder/