Literally one of the greatest addons available! Love that the chart is working in the new firefox, and love that it works on smile.amazon!

hlo

Version 2.9.7 works with the latest Firefox version 59.0.2. An icon shows up in the address bar that contains the price history graph. I've only tried it with a few Amazon products but so far it's working great.

This works great with Firefox Quantum 59. I like that the icon only appears when I'm on Amazon, rather than cluttering up the toolbar all the time. My only quibble is that when I first installed it, it didn't work on smile.amazon.com, only on the regular Amazon site, but this seems to have been fixed now.

Works great with Quantum 59+. Detailed pricing history really kills those impulse buying habits Amazon encourages and offers price notifications set to your limits. Great addon so far, considering how much I use Amazon. Love it.

Excellent. The way prices bounce up and down on Amazon, this add-on provides a great way to highlight when the price drops to what you want to pay, as well as being able to see a history of the pricing.

I like it

Support has released v 2.9.5 that successfully addresses the blank page encountered by some in v. 2.9.4.

It's a wonderful app, but the newest update broke it. The icon in the taskbar/menu is missing entirely. The app is installed, but there is no way to actually use it right now.
--- EDIT ---
it appears that the icon is in the address bar. I didn't even notice it moved. 5stars