As a web developer , I work with lot of RESTful webservices and as such JSON is an inevitable part of my work life. Decoding a large JSON response ( or a JSON array ) could be daunting when you are reading it from your browser window.
Luckily, I have found a very nice chrome extension that does a decent job of prettifying JSON response on the browser window. Below are the images of the same JSON response with and without the plugin.
The plugin that I have been referring to is JSONView.
As of this writing I was able to find this specific plugin only for Chrome and you can install it from the chrome store by clicking on the below link
Unfortunately, I am not able to find this in firefox, but do let me know if you were able to find something simialr for FF.