One Vanilla 作者： One Vanilla

One Vanilla is a simple and convenient add-on for Firefox browser, helping you calculate the value of products and area easily and quickly.

Feature:

Calculate product value:

Select products from the list and enter the quantity, which will automatically calculate their total value in USD currency.
The product list is displayed clearly and easily for you to choose.
The area:
Enter the width and height of the area to be calculated, the area will be displayed automatically in square meters (m²).