Develop with Firefox/Safari, then Internet Explorer

Browser compatibility is one of the most tedious task to take when developing websites. It's an overhead in the development just to make sure everything works fine. And we need to work on at least 3 major browsers (Internet Explorer, Firefox, and Safari) just to make sure 99% of the visitors sees your website how you want it to be.

The problem is that since Internet Explorer holds more than 70% of the browser market share, windows developers automatically debug their websites mainly with it and works down with compatibility in other browsers. This is obviously a big mistake since IE falls short on conformance and other standards.

The best way to address this and hasten your compatibility tests is to use standard-compliant browsers like Firefox, which is the second mostly used browser. If you are developing with Mac OS 10.5+/Safari 3 and later versions, you could be very sure of your design will work well. Therefore, once you mainly work on any of the 2 browsers, you could be 99% sure it'll work on all browsers and you'll just have to tailor compatibility with IE (because it's the dominant browser).

Finally, to easily test it on all browsers just go to BrowserShots website and simply enter a webpage you want to test.