Avoid this kind of useless shop-savings extensions that in facts can spy what you are looking on the internet, it's just collecting informations on you to profile you and similar customers to finally target ads/products/services. That's desguished spyware in counterpart to provide you a pretended nice service for free.

And just about the service provided: this kind of extensions (lots of similar exist like this one) can modify the webpages on-the-fly and also can censure some parts or search results to guide you to buy to a specific shop... instead of a concurrent. And guess who is paying the extension editor to do that? Sellers?
Just look at what this extension is requiring at the Permissions part...

Mind again before adding browser extensions!

You can maybe find coupons that still work about 30% of the time if that. Do not bother with using this if you think you'll get rewards from your purchases outside of the standard 1% or whatever your card offers. I've not received a single penny from the rewards offered through the extension. The only redeeming part of the extension and CapitalOne Shopping itself is the price comparison except when it inevitably links to a used product on ebay.

Hope you never have to change emails for any reason. They will just keep your rewards that you supposedly earned. Of course, after reading other reviews, you never get hem anyway!

I have had this thing for months and have yet to get a reward even after contacting CapitalOne Shopping. What's the deal?

This thing has a serious problem saying you can buy something much cheaper elsewhere when it's actually comparing two completely different models. Deals that are too good to be true are usually just this. Be careful. Wikibuy got me to buy a printer from a place with no returns or refunds because it told me I'd save 30%. Turns out it was the model without any of the features I actually needed. Thanks to Wikibuy I ended up getting the printer I needed at the low price of 170% MSRP. One star.

A poor man's Honey. Also, it's PATHETIC when sites don't allow you to change your email or delete your account. I'd wager they're selling browsing and/or purchase histories. But the shadiness of not letting us control our info is bad enough.

With Wikibuy installed, I viewed an amazon page for an item I was considering purchasing. The addon told me the the wrong price and shipping cost even though the price was listed right on the page, along with free shipping. It lies and does not tell you the truth, in order to get you to buy from them so they can make money. I do not like being swindled or lied to. I will be removing this addon permanently.

Here is a link to an image to prove this:
https://i.imgur.com/pbKkXv7.jpg

I enjoy using it on Chrome. Unfortunately everytime I try to add it to firefox, I get a failed to download message and check my connection....Its not my connection since I can get to every website I try just fine with the existing conection.

I see the wikibuy pricing on Amazon but get no response when I click on any green lettering. When I serch how to make it work I get nothing!!
How do you make it work?