Where can I find a breakdown of the difference between web browsers from a developer's prospective?
I always wanted to know what makes IE different than Firefox from Chrome, Opera, etc. Please let me know where I can find this info.
Have a look at this article for some detailed, useful information such as:
All of this information appears to be kept very current about modern browsers. The article lists some useful information about historical browsers as well.
I imagine that a web developer could find no more informative a comparison without giving up some degree of the breadth afforded by that article.
http://quirksmode.org/ has some VERY long tables on CSS, DOM and JS support.
Google's Browser Security Handbook has a comprehensive comparison of popular browsers from a security & development perspective