Firefox 3 is a massive upgrade over Firefox 2 with more than 14,000 changes over the 2.0 generation that was released in October of 2006. The great majority of those changes happened under the hood and aren’t immediately visible to, but there are enough user-centric improvements to make this new version a worthwhile update.

If you expect Firefox 3 to be drastically different in appearance, features and UI philosophy than what the previous version offered, then you will be disappointed up to the fact when you may wonder if this new browser should have been an incremental and minor upgrade instead. For instance, when you first fire up Firefox 3, you will hardly notice any visible difference to the previous version. However, there was nothing really wrong with the previous interface anyway and we are just fine with an evolutionary modification.

There are many minor tweaks subtle enhancements that you may be noticing only over days of regular usage. To us, the interface looks like an intelligently, thoroughly improved product that offers much more fluid browsing experience than the previous version. As the time goes by, you really begin noticing that Mozilla dramatically improved the browser code, mostly evident in visible speed improvements. Here is a low-down of the most important Firefox 3 improvements.