Impressive as it is, if Firefox 3.5 wants to stand head and shoulders above the competition, it needs implement some of the features that still distinguish , Chrome and Internet Explorer.

Chrome, which is my current favorite browser, leads in a couple ways. It improves reliability by running one process per tab so that a single tab crash doesn't take down the entire browser. Chrome also excels with its clean interface. This is especially important for netbook users. Firefox should take a page from Google's book on creating an efficient UI by integrating the search bar into the location bar and by using less space with the title bar.

Firefox still trails with its lack of new tab features. Chrome and Safari both show you your most commonly visited sites when a new tab is opened. Of course, Firefox has an extension available for almost anything, but it would be nice to see this functionality out of the box.

Internet Explorer 8 includes one feature I think Firefox and others should replicate: Colored Tabs. Links spawned into different tabs from the same page are color-coded. It's a great feature to differentiate articles opened from CNN from those opened from Reddit, for instance.

Of course there is one area in which Mozilla Firefox has IE, Chrome and Safari beat, and that's the ability to run on Windows, Linux, and OS X.