A free extension for Chrome by Well Done Tomato
One of the downsides to online shopping is when a product you really want is listed as unavailable or out of stock. It’s even more annoying when you have to wait for it to be available just to place it in your online cart. Luckily for you, this Chrome extension will help you resolve that problem.
This browser tool can bypass out of stock notices and lets you cart a product even if the website states that it’s not currently available. That way, you can purchase the console you want without waiting for it to be back in stock.
Note that this extension only works for the Microsoft and GameStop online stores. Make sure that you enabled it for the GameStop site so you can actually cart during a drop.