New Relic Browser is a powerful tool for understanding how your site's performance impacts your customers, providing capabilities to deliver great digital customer experiences. The guide offers tips and best practices for working with New Relic Browser, including setting up a naming convention for applications, linking APM and Browser apps for end-to-end visibility, using Session Traces to explore user behavior, diagnosing performance problems with AJAX requests, and creating URL whitelists to group browser metrics. It also provides guidance on using NRQL queries to get the most from Browser data, working with sourcemaps to decode minified JS errors, and accessing additional resources for learning more about New Relic Browser best practices.