I came across this sometime last year and started using it with both co-workers and clients. While we all know how to find out the browser, its version, etc., it’s often a difficult task to get that out of someone less technical.
Plus, it gives the user the ability to send all that info as a unique URL or via email. It’s been a simple, yet great piece to chase down browser and OS specific bugs, along with get more info than we typically would from the client.
Source: What’s My Browser – What browser am I using?