Google's latest release of Google Chrome for Mac adds several features that are necessary for the browser to be considered a viable alternative to Firefox or Safari. The latest version includes support for extensions (similar to add-ons in Firefox that extend your browser's functionality), the capability to sync bookmarks, and new bookmark, cookie, and task managers. Also, gesture support has been expanded to enable users to pinch-to-zoom, and use Command-three finger swipe to navigate pages in new tabs. Be aware though, Chrome is still in beta testing and therefore may be prone to buggy behavior. (Free, 18.8 MB)