macOS How To Create Pop-Up Reminder For Web Site

[markgrant]

For the past few months, Amazon.com has had the annoying habit of automatically changing the quantity of some of my purchases before I head to Checkout. So sometimes, I'll get 3 books or 4 DVDs when I only ordered one.

I have written them. But right now I just need a pop-up window whenever I checkout that reminds me to verify the quantities of everything I've ordered.

Would this be an Applescript? Add-on? Something else?

Thanks for any help.

 

[rowsdower]

Greasemonkey could do this.

 

[angelwatt]

I'm thinking GreaseMonkey. For Safari. This is the best bet that I can think of off hand. I don't think AppleScript would be able to know when you're checking out.

 

[markgrant]

Thanks for the GREASEMONKEY tips. Been Googling it for awhile now and since I know nothing about writing scripts, does anyone have a site that could teach me how to do this one --

Whenever I go to Amazon.com Home Page…

http://www.amazon.com/?ie=UTF8&*Version*=1&tag=flixer5-20&link_code=hom&*entries*=0

… a pop-up would remind me to "Remember to check quantities in Shopping Cart."

Thanks.

 

[angelwatt]

The Grease Spot.