Just installed the add-on, and saved 20%!!!

The entire interface is not very user friendly at all. You are the one stuck trying each coupon code your self to see if they work. I have even run into Slick Deals bringing up codes for other sites than the one that I am on. If you are wanting a good coupon finding extension use Honey. The extension does all of the leg work for you.

Coupons never work, despite claiming verified to work. Entire thing is there just to shill you ads and beg you to disable ad block. Scummy.

The extension uses a bunch of commonly blocked marketing domains so I can't use this on ad-blocking networks (work, others). Likely some DNS trickery could fix this.. or you know, just use slickdeals, since it isn't blocked.

why is there no icon on my browser?

Just learning

Why is this not allowed to be used on private windows? Where I do most of my shopping. All of the other shopping extensions let you use them in private windows.

Something causes some web pages to be completely blank white. Source good is there but FireFox cannot properly display page when APP is enabled. Needs work.
*Upgraded to a 2 star as SD support reached out to try and resolve. If they can work the bug I will change my rating and update again.

Spyware.

Worked like a charm. Automatically applied a coupon for me at checkout and saved me $38! Slickdeals has always been my goto to get the best deals.