Browser Security From Google

Aimed at web developers, browser engineers and security researchers, the BSH gives a basic insight into HTML, HTTP, Javascript and the construction of URL's. In addition, it explains web browser security features, for example, how they handle cookies and deals with websites that use components from different servers.
The handbook takes an in-depth look at the individual features of Internet Explorer 6 and 7, Opera, Apple Safari as well as Google's own Chrome. Versions 2.0.0.18 and 3.0.3 and Google's Linux-based browser, mobile SDK Android, also come under scrutiny.

Responsible for the project is Google's Michael Zalewski, who also worked on Chrome, Ratproxy and numerous other web security tools. On the BSH, he had the help of nine other developers.
The Handbook presently exists as Wiki entries on a Google project page and is licensed under the very liberal Creative Commons License that allows the distribution and modification, provided the original author is mentioned.

A complimentary tarball with browser test cases under the Apache License 2.0 is also available.