Google Labs Browser Size is now part of Google Analytics
This means that the Google Labs Browser Size tool is no longer available as a separate tool.
Google Labs Browser Size
A tool that offers a visualization overlaid onto any web site, which allows you to see how much of your audience can view your web page based on their browser size.
Important for testing your web page to find out whether important elements of your layout or design are effectively ‘hidden’ because of a user’s browser or screen resolution.