Global Variable Detector Extension

This extension helps you inspect one aspect of your JavaScript code quality, the number of global variables. Click the Browser… This extension helps you inspect one aspect of your JavaScript code quality, the number of global variables. Click the Browser Action button, the blue icon with the "Gl" on it, in order to collect a list of global variables on the current web page. In the Console, each variable is listed, and an object is logged which contains the variables in an array.