Quick Sum

About

Quick Sum 0.1 is an extension for Firefox that lets you quickly sum up values on webpages, much like a similar feature found in Microsoft Excel.

Summing up some values from a bank statement Quick Sum works well with the Ctrl+Click feature of Firefox that allows you to select multiple table cells. Try it out on your online bank statements or any other page with lots of numbers.
Selecting the calculation to use Quick Sum also allows you to choose a calculation to use, providing sum, average, min, and max functions.

Install and try it out!

Get Firefox