It used to work great, until it stopped working a while ago. It would be great if it would start working again sometime.

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!

This addon works great! I never have to fight and search for the best price.

Sometimes HF has a weird coupon that will display the price weird on this addon, but clicking on the price and checking the coupon always answers any questions.

This is a no brainier. If you are browsing the HF website to buy stuff, you need this addon.

Suggestion: I would like if it would check your shopping cart's contents for applicable coupons and automatically apply them, like Honey app does.

This Add-on used to work great. But now with the newer HF site it no longer seems to work.

I've checked permissions, removed and reinstalled, and it still won't work with the new website. The Chrome extension works, though?

HFQDB is the site to go to when you're shopping for the best price on HF items. This extension makes it that much easier - it shows the best price in green when you're browsing the HF site and takes you directly to the available coupon when you click on the green price.