With last major release of Firefox (see editorial links below) becoming the browser de jour the problems of browser compatibility have once again become significant. Actually, the issue is less a ...

Testing browser security features is important to keeping your web application safe and operable. To effectively test browser security features and ensure compatibility with updates, you need to use ...

Apple, Google, Microsoft, and Mozilla, all browser makers, along with software consultancies Bocoup, and Igalia, have agreed to work together to increase the interoperability of web design ...

Depends on your audiance. If you are going to have an audiance that uses old browser then check for compatablity. if not then i would not worry about it.