While most Windows-based users of Beta 4 of Firefox 3.5 are finding it to be speedy and efficient, and benchmark tests back that up, some Mac-based users are finding it to be slower than previous versions of the browser. Charles Moore, writing on TheAppleBlog, found a speedy solution in the Shiretoko variant of the Firefox beta. He writes: "Shiretoko (named after the Shiretoko National Park in northern Japan) transparently picked up where Firefox left off, even opening my saved browser session, and it runs the few Firefox add-on plugins I use as well. Aside from running faster and its distinctive application icon, it could just as well be Firefox 3.5b." Find out more here.