Firefox 3.6 adjustments
Made a few fixes to Firefox 3.6 support, it does not include support for SVG fonts as mentioned previously, however it does support the new (but currently unofficial) WOFF font format. Considering the future significance of this format, I have added it as a feature too. I also changed the link for the multiple background support example, to one that works in both Safari as well as Firefox 3.6. Bonus link: Firefox 3.6 for developers.