Chrome is blazingly fast and is easily the quickest browser available. Based on Webkit, the same open-source engine that powers Apple Safari, Google’s Android mobile platform, and several other Web-browsing tools, Chrome’s interface is a drastic departure from other browsers. Instead of the traditional toolbar, Chrome puts its tabs on top. Moreover, the tabs are detachable: “tabs” and “windows” are interchangeable here. Detached tabs can be dragged and dropped into the browser, and tabs can be rearranged at any time. By isolating each tab’s processes, when one site crashes, the other tabs do not.

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Firefox 3 is full-featured, lightning fast, and an able foe for both the big-dog competitor Internet Explorer and competitors nipping at its heels. Firefox’s killer add-ons remain strong, and the latest update makes version 3.5 about two times faster than version 3. 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. Along with Mozilla’s new TraceMonkey JavaScript engine that renders Web applications faster on Firefox than ever before, there have also been improvements to the layout engine Gecko for faster page rendering. The new Private Browsing brings a feature to Firefox that competitors have had for a while: the capability to turn off cookie and history logs. Users also have more granular control over cookies, history, and bookmarks in version 3.5 via the redone Clear Recent History option under Tools. Geolocation courtesy of Google has been activated by default in Firefox, so that generic searches such as “city hall” will come closer to pegging the government offices nearest you.

Web developers should be excited about expanded support for HTML5 local storage, downloadable fonts, and native support for OGG-formatted embedded video. ICC profiles, SVG transforms, CSS media queries, native JSON support, and Web worker threads also get lots of love from v3.5. There’s no doubt that Firefox 3.5 is a must-have, but it’s an update that’s more about keeping the browser current rather than blazing new trails.

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AVG Free provides the bare necessities when it comes to security, but that should be enough for savvy Windows users. You’ll get a combined antivirus and antimalware engine, LinkScanner, and e-mail scanning. AVG Free 9 introduces a few new features, with improvements focused on performance, including claims of faster scan and boot times. One new feature is the Identity Theft Recovery Unit. Only for users in the United States, ITRU is a business partnership with Identity Guard which provides “consumer identity theft solutions,” accessible only from the AVG toolbar in Firefox and Internet Explorer.

The interface is nearly unchanged from the last version, and generally it’s easy to use. From the main window, though, you must double-click to get further information on any feature, whether virus scanning, LinkScanner settings, or updating. Streamlining this to one click would be helpful. A scheduling utility automates both scans and updates, while the upgrade ad at the screen’s bottom can be easily hidden using the Hide Notification button. When starting a scan, a slider makes it easy to jump between Slow, Automatic, and Fast scans: the faster the scan, the less comprehensive it is, so users should take advantage of the scan optimization that is recommended during installation to speed up that first scan. A progress meter for regular scans would’ve been useful, though. Should a virus create serious problems, AVG creates a rescue disk to scan your computer in MS-DOS mode.

The LinkScanner feature protects you from third-party code exploits before they load in your browser and for ranking search results. Annoyingly, when you install its optional toolbar, it commandeers your new-tab page, decidedly inappropriate behavior. The program doesn’t obviously tax your system when scanning or when running in the background, although CNET Labs determined that it will significantly slow down your system’s boot time, and slightly delay shutting down. AVG also detected some image files as threats, when two other scans decided they weren’t–we decided these were false positives. AVG might not be the fastest or the most effective free security option, but it still gets the job done and you’re better off with it.

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