What percentage of marketshare does a browser need for your support?

browser

Solution

- Firefox, IE7 and IE6 are enough to cover more than 90% of the browser market share.

- It is a good idea to read the new web standards and take in account what Microsoft prepares for IE8.

- Then you can try to be compatible with Google Chrome.

- Finally, there should be a very specific customer request to invest the time and money making support for the other browsers like Opera, Safari e.t.c.

Problem

I'm building a website for a small non-profit org. and I was wondering at what kind of browser marketshare a browser should have before I support it. Chrome looks like a major contender, but it's still less than 5%, as is Opera. What browsers do you think I should completely support for this kind of project?

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