Which browsers and operating systems do you target on new websites?

Question

When you are working on a new website, what combinations of browsers and operating systems do you target, and at what priorities? Do you find targeting a few specific combinations (and ignoring the rest) better than trying to strive to make them all work as intended?

Common browsers:

• Firefox (1.5, 2, 3)
• Internet Explorer (6, 7, 8-beta)
• Opera
• Chrome

Common operating systems:

• Windows (XP, Vista)
• Mac OSX
• Linux
• Unix

Answer 1

Mainly I just target browsers as the sites I've built don't really depend on anything OS specific. As mentioned above, YAHOO's graded browser support guide is a good starting point on determining which browsers yous should/could support. And Yahoo's User Interface library (CSS+JavaScript) helps massively in achieving this.

But when developing sites I primarily do it on Firefox2 as it has the best web developing tools (firebug + wed developer toolkit). Then I also test my sites with Opera 9.5 as it's my browser of choice for browsing. I've previously lost all hope on supporting IE6 at any reasonable level so these days I just inform my users to upgrade to IE7 which is almost capable of displaying sites similarly to FF2/3+Chrome+Opera.

FF3 and Chrome are so new at the moment that I tend to ignore them, but I must say: They're friggin fast! My javascript/css heavy sites are noticeably faster with them.

Answer 2

I'm doing:

• Firefox 2 and up
• IE 7 and up
• Konquorer or Safari (or maybe now Chrome)