Looking to browse with the full weight of your 64-bit hardware? Well, if you're a Firefox and Windows user, you're going to have to look elsewhere, as Mozilla has announced it's closing the development of Firefox for the bigger computer architecture. Mozilla manager, Benjamin Smedberg outlined several reasons for the decision, including limited access to 64-bit plugins, a higher propensity for the browser to hang when using available plug-ins and difficulty distinguishing between 32- and 64-bit versi