Download Mozilla Firefox 13 Beta 4 - Last Version

Mozilla Firefox is a fast, full-featured Web browser. Firefox includes pop-up blocking, tab-browsing, integrated Google search, simplified privacy controls, a streamlined browser window that shows you more of the page than any other browser and a number of additional features that work with you to help you get the most out of your time online.

No longer a fledgling upstart, Firefox is the gold standard of alternatives to the still-dominant Internet Explorer. Firefox 3.6 is full-featured, lightning fast, and secure. Its killer selection of add-ons remains strong, with built-in support for the next generation of themes, called Personas, plus the latest update makes version 3.6 about 20 percent faster than version 3.5. However, competition is strong and it can no longer be said that Firefox is the fastest browser available.

Several notable improvements in the latest revamp keep Firefox abreast of current browsing tech. In addition to the aforementioned improvements made to the TraceMonkey JavaScript engine so that it renders Web applications faster, there have also been other significant under-the-hood changes. These include: blocking third-party software from encroaching on Firefox's file system turf to increase stability; support for the Web Open Font Format, which means many non-English browser users should have a faster time loading Web pages with downloadable fonts; and support for the File interface, which can help with tasks such as uploading multiple photos and is part of the draft HTML5-standard effort. HTML5 support debuted in Firefox 3.5. Another deeper change to the browser is that it is now running scripts asynchronously, which can help to load a Web page faster by putting off some work until the high-priority chores are complete. Firefox 3.6 also isolates out-of-date plug-ins so they do not become a security risk.