Hey again Alexnguyen
It looks like the correct extension and it is installed perfectly! It won't be active unless you're actually on the Aliexpress.com page. It is used to fulfill orders and import products from Aliexpress so if you click it while on another page nothing happens as it does not have a function.
Here is a guide describing how to use it on Aliexpress.com!
Let us know if there was something specific you were looking to do with it and we can help!