Is there a software that is package to check browser compatibility with most major browser? I use browsershots.org, but it isn't that efficient because it would only return a screenshot of your website. I also use Multiple IE to check how IE renders the website. but it only checks on Internet Explorer.
I hope there is a software that is similar to browsershots where you can put your address choose different type of browsers and different versions of it. It would be a major bonus if it would a firebug or similar to the software.