I was having trouble finding a selector for my CodeCeption tests using ChromeDriver. Although this extension requires some (minor) tweaking only once (which is very well documented), I found it an absolute joy and intuitive to use. Persist with that initial setup, it will pay off.

By using this app I was able to not only figure the parent selector that I needed to target, but also to verify the child selector all within its GUI, kinda like the FF inspector when you are testing jQuery selectors.

Love it, thank you for your hard work in making this available to others!