I have a MacBook Pro with Os X v 10.5.8 and a site that I need for a class requires Firefox 1.5 or 2.0. Whenever I go to the site (www.princetonreview.com), it immediately crashes. It is such an old version that I cannot even follow the articles about crashes because I do not have the links appear in Firefox 2.0. Please help! I need this to work immediately!!!